Questions Asked on
November 30, 2010

  1. math

    What does a boy who likes to play with switches do

    asked by Anonymous
  2. Chemistry

    Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0012% Pb by mass. How much of the water in milliliters contains 145 mg of Pb? (Assume that the density of the solution is 1.0g/mL.)

    asked by Kelsey G
  3. chemistry

    The net ionic equations for the following 1. Dissolution of silver oxalate with nitric acid 2. Complexation of the iron(III) by the thiocyanate ion 3. Precipitation of the carbonate ion with barium ion 4. precipitation of the oxalate ion with barium ion 5.

    asked by Jake
  4. Physics

    A spring is hung from the ceiling. When a coffee mug is attached to its end, it stretches 3.0 cm before reaching its new equilibrium length. The block is then pulled down slightly and released. What is the frequency of oscillation?

    asked by Mike
  5. writing process

    Choose one of the following topics. Write an 8-paragraph sentence paragraph that fully develops the topic. a. following instructions is very important. b. Advances in technology are making people less social. c. A high school diploma is important to my

    asked by jackie rios
  6. SPANISH

    Tu amiga tiene muy mala memoria, te prestó algunas cosas pero tú le devolviste todo. Escucha sus preguntas y contéstalas (answer them) según el modelo. Oyes: ¿Me devolviste las fotos? Dices y escribes: Sí, te las devolví. Oyes: ¿Y la calculadora?

    asked by AYUDA ME PORFAVOR!! :)
  7. algebra

    a local grocery store has plans to construct a rectangular parking lot that is bordered on one side by a highway. there are 1280 feet of fencing avaliable to enclose the other three sides. find the dimensions that will maximize the area of the parking lot.

    asked by Anonymous
  8. PHYSICS

    If a fly collides with the windshield of a fast moving bus a) which experiences the greater impact force: the fly or the bus, or is the same force experienced by both? b)which experiences the greater acceleration: the fly or the bus or is the same

    asked by CHRISTIE
  9. Chemistry

    132 grams of CH4 reacts with Oxygen gas to produce carbon dioxide and water vapor. give the mass of the oxygen needed to react with all the methane and give the mass of the carbon dioxide and water vapor produced. can somebody explain this to me? i'm lost.

    asked by Annabella
  10. Physics

    Pluto’s minimum orbital velocity is 3.7 km/s. What are the values for vP (perihelion velocity) and vA (aphelion velocity)?

    asked by Lola
  11. chemistry

    A 275-g. sample of nickel at 100 degrees C is placed in 100 g. of water at 22 degrees C. What is the final temperature of water? Assume that no energy is gained or lost to the calorimeter or the surroundings. Specific heat capacity of nickel = .444 J/

    asked by Anonymous
  12. physics

    A rifle is fired horizontally and travels 200.0 m The rifle barrel is 1.90m from the ground. What speed must the bullet have been traveling at? Ignore friction. How do I solve this ?

    asked by anonymous
  13. Physics

    A 5.4 kg bag of groceries is in equilibrium on an incline of angle θ= 150. Find the magnitude of the normal force on the bag

    asked by Abi
  14. Math

    The ocean covers about 71% of the Earth's surface. If the total surface area of the Earth is about 510 million square kilometers, how many square kilometers are covered by the ocean? 362.10

    asked by Hayley
  15. clothing and textile

    what are some reasons for controlling fullness

    asked by nickey
  16. Calculus

    The amount A in grams of radioactive plutonium remaining in a 20-gram sample after t days is given by the formula A=20*(1/2)^(t/140). At what rate is the plutonium decaying when t=2 days?

    asked by Sara
  17. physics

    a 5.0 kilogram block weighing 49 newtons sits on a frictionless, horizontal surface, a horizontal force of 20. calculate the magnitude of the acceleration of the block

    asked by antonet
  18. chem help

    A sample of methane gas, CH4 was collected over water at 25 degrees celcius and 720 torr. The volume of the wet gas is 2.50L. What will be the volume of the dry methane at a standard pressure?

    asked by annonymous
  19. Physics

    25) A 75-g ice cube at 0 C is placed in 825g of water at 25 C. a) What is the final temperature of the mixture? b) If the final temperature is 0 C, then how much ice remains? c) change the ice's mass to 300g, and repeat the problem

    asked by Y0gi
  20. math

    an empty rectangle tank with a base area of 2400 cm^2 is filed with water from 2 taps. one tap can fill the tank with 12L of water per minute, while the other tap can do it at 3l less perminute. (A) what will be the depth of water in the tank after both

    asked by Katherine
  21. Chemistry

    Write the balanced equation and solubility product expression for the solubility equilibrium of Mn3(PO4)2: i thought the answer was Mn3(PO4)2 (s) = Mn^2+(aq) + (PO4)2 ^3- (aq) but that's not right. then for the Ksp expression i thought it was [Mn^2+]

    asked by Jake
  22. Chemistry2

    WO3 (s) + 3 H2 (g) -> W (s) + 3 H20 (g) Tungsten is obtained commercially by the reduction of WO3 with hydrogen according to the equation above. The following data related to this reaction are available. DeltaH(kilojoules/mole) for WO3 is -839.5. DeltaH

    asked by Jeffery
  23. Grade 11 Physics

    Two kids are on a beach pulling an inner tube. One is pulling at a force of 45N[N] and the other one pulling at 60N[SW]. What is the net force? (I tried to do it by taking the 60N and making a right angled triangle with it, i got 42.43N north and west,

    asked by Tyler
  24. Physics

    25) A 75-g ice cube at 0 C is placed in 825g of water at 25 C. a) What is the final temperature of the mixture? b) If the final temperature is 0 C, then how much ice remains? c) change the ice's mass to 300g, and repeat the problem I don't know how to work

    asked by Y0gi
  25. Physics

    55) A 200-g block of copper at a temperature of 90 C is dropped into 400g of water at 27 C. The water is contained in a 300-g glass container. What is the final temperature of the mixture?

    asked by Y0gi
  26. Chemistry

    AgNO3 solutions are often used to plate silver onto other metals. What is the maximum amount of silver in grams that can be plated out of 3.8 L of an AgNO3 solution containing 3.2% Ag by mass? (Assume that the density of the solution is 1.02 g/mL.)

    asked by Kelsey G
  27. geometry

    obtuse triangle ABC with obtuse angle B. Point D on side AC such that angle BDC is also obtuse. Angle DAB is 2/3 of angle ABD. Angle BCD is 1/5 of angle CBD is 4 more than angle BAD. Find the measure of angle ABC.

    asked by suzy
  28. Physics

    A bicycle wheel of radius .7m is rolling without slipping on a horizontal surface with an angular speed of 2 rev/s when the cyclist begins to uniformly apply the brakes. The bicycle stops in 5 s. Through how many revolutions did the wheel turn during the 5

    asked by Kevin
  29. physics

    The curves on a race track are banked to make it easier for cars to go around the curves at high speed. Draw a free-body diagram of a car on a banked curve. From the motion diagram, find the direction of the acceleration (a) What exerts the force in the

    asked by max
  30. physics

    A 500 kg car moves along a horizontal road. The car moves with an acceleration 2.5 m/s2 by a driving force of 2500 N when the air resistance is 400 N. Find the friction of the tyre of the car.

    asked by Anonymous
  31. Algebra

    Question: Looking below is this answer correct? If you follow the math, you reach the entire population before 8 hours have passed yet the solution says 8.86 hours.... Is the solution giving us the numbers in the set and not the actual elapsed hours???

    asked by Chris
  32. Form1/9th grade

    A mixture contains solids: Aluminium,camphor and sugar.Explain how you would obtain a sample of solid sugar from the mixture.

    asked by Benjamin
  33. Physics

    A packing crate is placed on a 32° inclined plane. If the coefficient of static friction between the crate and the plane is 0.67, will the crate slide down the plane? What is the minimum angle to which the plane must be raised so that the crate will slide

    asked by Jenni
  34. chemistry 121

    3fe+H2O----Fe3O+4H2 how many grams of steam and iron mist reat to produce 375g of magnetic iron oxide

    asked by ngugi
  35. Chemistry

    Determine the volume of 0.250 M KOH solution required to neutralize each of the following samples of sulfuric acid. The neutralization reaction is: H2SO4(aq) + 2KOH(aq) = K2SO49aq) + 2H2O(l) Find: 15 mL of 0.250 M H2SO4

    asked by Kelsey G
  36. physics

    A solid cylindrical disk has a radius of 0.17 m. It is mounted to an axle that is perpendicular to the circular end of the disk at its center. When a 35-N force is applied tangentially to the disk, perpendicular to the radius, the disk acquires an angular

    asked by mackenzie m
  37. Organic Chem I Lab

    I had to react 1-propanol with NaBr and H2SO4. I refluxed for one hour and when attempting to separate out the product (product was supposed to be 1-bromopropane) via sep funnel either could no longer distinguish between the organis layer and the aqueous

    asked by Meredith
  38. chem homework

    a gas occupies a volume of 410mL at 27 degrees Celcius and 740mm Hg pressure. Calculate the volume the has would occupy at STP.

    asked by samantha
  39. physics

    Felicia, the ballet dancer, has a mass of 45.0 kg. a.) What is Felicia's weight on Earth? b.) What is Felicia's mass o Jupiter, where the acceleration due to gravity is 25.0 m/s2? c.) What is Felicia's weight on Jupiter?

    asked by Jay
  40. Chemistry

    How many lone pairs are on the central atom in BCl3

    asked by Brenda
  41. Physics

    A 10kg particle undergoes simple harmonic motion with an amplitude of 2.0mm, a maximum acceleration of 8.0x10^3 m/s^2, and an unknown phase constant (phi) What are: a.) the period of the motion b.) the maximum speed of the particle c.) total mechanical

    asked by Greg
  42. physics

    An air puck of mass m1 = 0.45 kg is tied to a string and allowed to revolve in a circle of radius R = 1.0 m on a frictionless horizontal table. The other end of the string passes through a hole in the center of the table, and a mass m2 = 1.10 kg is

    asked by melissa
  43. Physics

    A bat emits a chirping sound of frequency 67.0 Hz while moth hunting. The chirp lasts for 1.0 ms and then is silent. The beginning of the echo returns just after the outgoing chirp is finished - how close to the moth is the bat? Assume a cool night with

    asked by Dee
  44. Mat101

    5. Which of the following are functions? The last two problems, i.e., b & c, are multi part relations consider all parts when determining whether or not these relations are functions. Explain your reasoning for a, b, and c. a. f(x) = x + 3 b. f(x) = 73 if

    asked by Samantha Joseph
  45. biology

    The mouth, small intestine, and kidneys have functions that involve the a. digestion of food, synthesis of vitamins, and filtering of the blood. b. intake, digestion, absorption, and elimination of food and its wastes. c. secretion of bile, digestion of

    asked by Lily
  46. Chemistry-urgent!

    What volume of 2.5% (w/v) KOH can be prepared from 125 mL of a 5.0% KOH solution?

    asked by Madison
  47. physics

    A loudspeaker is placed between two observers who are 111 m apart, along the line connecting them. If one observer records a sound level of 51.9 dB and the other records a sound level of 82.5 dB, how far is the speaker from each observer?

    asked by Linda
  48. physics

    The curves on a race track are banked to make it easier for cars to go around the curves at high speed. Draw a free-body diagram of a car on a banked curve. From the motion diagram, find the direction of the acceleration. (a) What exerts the force in the

    asked by max
  49. Physics

    19) A 100-g aluminum calorimeter contains 250g of water. The two substances are in thermal equilibrium at 10 C. Two metallic blocks are placed in the water. One is a 50-g piece of copper at 80 C. The other sample has a mass of 70g and is originally at a

    asked by Y0gi
  50. 5th grade math

    The diameter of a soup can is about 7cm the label wraps around the can , about howmany cm long must the label be to go all the way around the soup can? use 22/7 for pi

    asked by jill
  51. home econonmics

    what is the controlling of fullness

    asked by nickey
  52. Geometry

    1. How many sides does a regular polygon have if one exterior angle is 90 degrees? 3 4 5 6 2. The measures of three angles of a quadrilateral are 80, 90, and 103 degrees. Find the measure of the fourth angle. 67 77 87 97 3. The sum of the interior angles

    asked by Justin
  53. 11th grade

    The curves on a race track are banked to make it easier for cars to go around the curves at high speed. Draw a free-body diagram of a car on a banked curve. From the motion diagram, find the direction of the acceleration (a) What exerts the force in the

    asked by max
  54. physics

    A rifle is fired horizontally. The bullet is found to have traveled 200 meters. If the rifle barrel is 1.90 meters above the ground, at what speed must the bullet have been traveling as it left the barrel?

    asked by anonymous
  55. physics

    What is the longest wavelength for standing waves on a 238.0 cm long string that is fixed at both ends?

    asked by Josh
  56. Computers

    Most personal computers are equipped with a version of the Windows operating system, whereas Apple personal computers have a different operating system. Other choices are also available, such as UNIX and Linux. What do the other systems have to offer that

    asked by Anonymous
  57. physics

    A light spring of spring constant k = 160 N/m rests vertically on the bottom of a large beaker of water. A 5.00 kg block of wood (density D = 700 kg/m3) is connected to the spring, and the block ? spring system is allowed to come to a static equilibrium

    asked by melissa
  58. geometry

    1. An exterior angle of a regular polygon measures 30 degrees. What is the measure of an interior angle? 30 60 120 150 2. How many degrees are in each interior angle of a regular pentagon? 50 72 108 120 3. If all of the diagonals are drawn from a vertex of

    asked by Justin
  59. Chemistry

    A 327- ML sample of unknown HCI solution reacts completely with Na2CO3 to form 20.1 g CO2 What was the concentration of the HCI solution?

    asked by Cathy Miller
  60. math

    A supplier provides parts to a manufacturing company that demands JIT deliveries. At the present time it takes 6 hours to make a round-trip between the supplier's warehouse and the customer, including loading, travel and unloading time. The lot size is 12

    asked by jackie
  61. Chemistry/Science - please help!

    An aqueous mixture containing starch (a colloid), NaCl, glucose, and albumin (a colloid) is placed in a dialyzing bag and immersed in distilled water. Which of the following correctly describes the location of the indicated substance after dialysis?

    asked by Madison
  62. physics HELP

    A projectile is fired with an initial speed of 1000 m/s at an angle of 37 degrees above the horizontal. If air resistance is neglected, the horizontal component of the projectile's velocity after 20 s is approximately A) 600 m/s B) 800 m/s C) 640 m/s D) 40

    asked by anonymous
  63. stats - URGENT!!!!

    the following sample observations were randomly selected: x: 2,5,6,8,9,11,15 y: 22,23,16,18,19,13,12 a)calculate the correlation coefficient, r b) determine the regression equation c) determine the value of Y when X=20

    asked by skitter
  64. Chemistry

    The solubility of calcium sulfate at 30 degrees C is .209 g/100mL solution. Calculate its Ksp i calculated it and got 1.5 x 10 ^-2 but the program said that it was wrong if you could help explain how to do it i would appreciate it

    asked by Joe
  65. Math

    which of the following is NOT a unit of measurment in the metric system A. Meter B. Liter C. Pint D. Gram

    asked by Mare
  66. calculus

    The velocity of a particle moving along the t-axis is given by f(t)=2+.05t cm/sec. Use a graph of y=f(t) to find the exact change in position (distance traveled) for the particle from t=2 to t=8.

    asked by Anonymous
  67. Organic Chem I Lab

    I had to react 1-propanol with NaBr and H2SO4. I refluxed for one hour and when attempting to separate out the product (product was supposed to be 1-bromopropane) via sep funnel either could no longer distinguish between the organis layer and the aqueous

    asked by Meredith
  68. social studies

    What did the Spanish hope to do in California?

    asked by vivian
  69. Pharmaceutical Dosage Forms

    If there is 1 g KH2PO4 and 1 g K2HPO4 in 100mL of solution, what is the mEq/mL of potassium? The Answer is 0.19mEq/mL. But I need to show work on how to get the answer. Textbook Applied physical pharmacy By Mansoor M. Amiji, Beverly J. Sandmann Chapter 3

    asked by Jay
  70. Chemistry

    how do I write out this problem? How many grams of lithium metal would be produced if 0.500 grams of magnesium was added to a solution of lithium chloride

    asked by Tosha
  71. college

    If 0.0900 g of a metal, M, reacts with excess hydrochloric acid to form 5.00*10(exp.)-3 moles of hydrogen gas and a solution of MCl(subscript)3. Calculate the molar mass of metal, M and identify it. The unbalanced equation is: M(s)+ HCl(aq) =>MCl(sub.)3 +

    asked by Alex
  72. geometry

    kite ABCD with angle A=60 degrees and angle C=90 degrees, diagonal DB=12 find the area and perimeter

    asked by Kathy
  73. Ashford SAP for FINANCIAL AID

    I have read in the handbook about SAP.I pass 2 of 3 courses but my GPA IS 2.0 AS REQUIRED.My grade A- C+ and F which is 62.24%,since when has a grade of 62 is a F???? I know it is a D.If I am mistaken about what in the handbook for SAP so be it,but I am

    asked by E
  74. art

    I have an image by Takashi Murakami.that I need a professional opinion for complete a detailed analysis of the image using all the visual elements and principles of design. The image is Tan Tan Bo Puking—a.k.a. Gero Tan (2002).

    asked by Mike
  75. english

    your school has been invited to send a team of students to take part in the association of World Youth Groups.write a letter to your year group,inviting students to become part of the team .in the letter you need to tell them 1)for which activity u r

    asked by sweetie
  76. physics

    A 10 g particle undergoes Simple Harmonic Motion with an amplitude of 2.0 mm, a maximum acceleration of magnitude 8.0 X 10^3 m/s^2, and an unknown phase constant, theta. What are a.) the period of the motion, b.) the maximum speed of the particle, and c.)

    asked by Scott
  77. physics

    Suppose you are riding a stationary exercise bicycle, and the electronic meter indicates that the wheel is rotating at 8.7 rad/s. The wheel has a radius of 0.30 m. If you ride the bike for 2130 s, how far would you have gone if the bike could move?

    asked by mackenzie m
  78. physicS

    What is the longest wavelength for standing waves on a 238.0 cm long string that is fixed at both ends?

    asked by Josh
  79. Physics

    A glass windowpane in a home is 0.62 cm thick and has dimensions 1.0 m x 2.0 m. On a certain day, the indoor temperature is 25 C and the outdoor temperature is 0 C. a) What is the rate at which energy is transferred by heat through the glass? b) How much

    asked by Y0gi
  80. biology

    When an impulse moves down the axon, a. sodium ions first rush out of the cell. b. a small part of the axon momentarily reverses its polarity. c. the resting potential of the cell does not change. d. potassium ions are pumped into the axon. B?

    asked by Lily
  81. Physics

    60) A class of 10 students taking an exam has a power output per student of about 200W. Assume the initial temperature of the room is 20 C and that its dimensions are 6.0 m by 15.0 m by 3.0 m. What is the temperature of the room at the end of 1.0 h if all

    asked by Y0gi
  82. FINANCE

    Crimini Foods is offered a $400,000 line of credit for six months at an APR of 10%. This loan has a loan origination fee of 2%. What is the actual six-month interest rate paid, expressed as an EAR

    asked by KEVIN
  83. Math

    Half of the students in Sonia's class are girls. Half of the girls have brown hair. Half of the brown haired girls have brown eyes. There are 4 girls with brown hair and brown eyes. How many students are in Sonia's class?

    asked by Manasa
  84. Chemistry

    Need help with this problem in order to figure out three others. What volume of 2.25 M HCI in liters is needed to Completely react with 0.500 L of 0.400 M Na2CO3?

    asked by Evette C.
  85. science

    I'm doing my science homework and I have a hard question I cant answer. The question is: how do we look like when we pay attention? I would really apperciate if someone would help me with this. Thank You!

    asked by Luna
  86. Language (gerunds)

    Carla was talking in a low whisper to her best friend. I think that there is not a gerund. Carla noun was talking verb and the rest are both prep phrases

    asked by michael
  87. chemistry urgent

    a mixture of NO, CO2, and O2 gases has a total pressure of 2.5x10^3 torr. if the partial pressure of NO is 800 torr and CO2 is 600 torr, what is the partial pressure of O2? Dr. Bob. Please help

    asked by Lynn
  88. Chemistry

    A buffer is prepared by mixing 205 mL of .452 M HCl and .500 L of .400 M sodium acetate. Ka =1.80 x 10^-5 I got the pH is 4.79 but i can't figure out the grams of KOH the problem says how many grams of KOH must be added to .500 L of the buffer to change

    asked by Yumi
  89. Chemistry

    Determine the volume of 0.250 M KOH solution required to neutralize each of the following samples of sulfuric acid. The neutralization reaction is: H2SO4(aq) + 2KOH(aq) = K2SO49aq) + 2H2O(l) Find: 205 mL of 0.130 M H2SO4

    asked by Kelsey G
  90. English

    1.Throughout his life, Chavez focused on nonviolent action. 2.He organized several boycotts of grapes and lettuce. 3.In California there was work for farmworkers if they could go from one farm to another. 4.In 1937, Cesar Chavez's family did not have

    asked by Chris
  91. chem help!

    An expandable balloon contains 1400L of He at .950atm pressure and 18 degrees Celcius. At an altitude of 22 miles (temperature of 2.0 degrees Celcius and pressure of 4.0 torr), what will be the volume of the balloon?

    asked by annonymous
  92. social studies

    In analyzing the Hellenistic kingdoms, what present-day countries control territory that was controlled by the Seleucid empire? My answer is Turkey, Syria and Iraq. Is this correct??

    asked by Reed
  93. Math

    Solve using Determinants and Cramer's Rule? I was absent and missed the lecture on Cramer's rule and Determinants and have no idea how to start the homework.. The directions and problem are as follows: Using Cramer's Rule, set this problem up to find "a".

    asked by Euphoria
  94. math

    a grocery store sells 6 pounds of apples for $4. how much will 8 pounds of apples cost? round your answer to the nearest cent.

    asked by ginger
  95. math

    A square room has perimeter of 32 feet. How. Many many square floor tiles with sides 1 foot long are needed to cover floor

    asked by tim
  96. english

    letters that make schwa sound in compass

    asked by seema
  97. Math 5th grade

    how is the number of zeros in the quotient of 420 divided 7 = 60 related to the number of zeros in the dividend

    asked by AJ
  98. 5th grade word problem math

    the teacher asked the students to add up all the numbers from 1 to 100.It only took carl a minute to come up with the answer. Can you figure what carl did to come up with the answer and what is the correct answer.Hint: there is a pattern.

    asked by tryston
  99. chemistry

    Enthalpy and Entropy in Reactions and Solutions Introduction In the course of most physical processes and chemical reactions there is a change in energy. In chemistry what is normally measured is H (enthalpy change), the change in heat at constant pressure

    asked by allison
  100. chemistry

    How many liters of carbon dioxide gas will be produced from the decompostion of 5.0 grams of sodium hydrogen carbonate? How do I write out equation and solve it

    asked by Tosha
  101. spanish

    I have a question about this phrase translated to Spanish. "Well, yes. I enjoy studying Spanish very much." Is it this way? Pues si, yo estudio espanol mucho. or Pues si, yo estudiar espanol mucho. using the infinitive form of estudiar. Thank you.

    asked by Jeff
  102. AP Chemistry

    A mixture of argon and mercury vapor used in advertising signs emits light of wavelength 610 nm. Calculate the energy change resulting from the emission of 1.00 mol of photons at this wavelength. Answer in units of kJ/mol.

    asked by Billy
  103. Physics

    In a damped oscillator with m = 248 g, k = 80.6 N/m, and b = 67.4 g/s, what is the ratio of the amplitude of the damped oscillations to the initial amplitude at the end of 20 cycles?

    asked by Trent
  104. math

    A rectangular prism has a volume of 8 cubic yards. Assume the dimensions are whole numbers. What dimensions yield a prism with the greatest surface area? the leaset surface area?

    asked by Mally
  105. math

    an empty rectangle tank with a base area of 2400 cm^2 is filed with water from 2 taps. one tap can fill the tank with 12L of water per minute, while the other tap can do it at 3l less perminute. (A) what will be the depth of water in the tank after both

    asked by Katherine
  106. Terminal Velocity

    How can u determine that a falling object has reached terminal velocity from a velocity time graph of its motion? u can determine if a falling object has reached terminal velocity from a velocity-time graph of its motion by its stop of acceleration. The

    asked by Teya
  107. chem: gases, liquids, solids

    How many kilojoules of heat is required to completely covert 60.0 grams of water at 32.0° C to steam at 100°C? For water: s = 4.179 J/g °C (delta)H fusion = 6.01 kJ/mol (delta)H vap = 40.7 kJ/mol

    asked by Dani
  108. Physics

    If I have a diagram of Kepler's laws of planetary motion and it shows change in t1 larger than change in t2 and A1 larger than A2 and asks the question: which of the following is correct? 1.A3 = A3 2.change in t3 > change t3 3.if change t3 = change in t2,

    asked by JamieLynne
  109. physics

    Find the center of mass of the carbon monoxide molecule , given that carbon has a mass of 12 u, oxygen has a mass of 16 u , and the two atoms are 0.111 nm apart.

    asked by Mattie
  110. Phys

    A series of waves traveling at 200m/sec are being generated by a 100 Hz source. A point at the very top of the crest of a certain wave is _______ meters from a corresponding point 3 'crests' away. 0 1.5 2.7 4 6.0 12.0 16.0 30000 I think its 4 b/c

    asked by Kristina
  111. FINANCE

    Carborundum Metals issues commercial paper with a face value of $1,000,000 and a maturity of three months. Carborundum receives net proceeds of $992,000 when it sells the paper. If the prime rate is 8% APR compounded quarterly, how much savings in interest

    asked by KEVIN
  112. chem

    Ca(s) + 2 H2O(l) Ca(OH)2(aq) + H2(g) acid-base double-displacement gas evolution oxidation-reduction precipitation single-displacement synthesis whichs one(s) is it?? thanks

    asked by hannah
  113. college

    A supplier provides parts to a manufacturing company that demands JIT deliveries. At the present time it takes 6 hours to make a round-trip between the supplier's warehouse and the customer, including loading, travel and unloading time. The lot size is 12

    asked by jackie
  114. Math

    Mae Assurian is an electrician. She works form 6:45 a.m. to 3:30 p.m. Monday through Friday, and takes a 45-minute break for lunch. How many hours per week does Mae work?

    asked by Anonymous
  115. chemistry

    if 3.86x 10^22 atoms of aluminum meatal react with cupric sulfate, how many grams of copper metal will be created. How do I write this problem out and solve it

    asked by Tosha
  116. Physics

    A horizontal force of magnitude 30.0 N pushes a block of mass 3.85 kg a distance of 3.00 m across a floor, where the coefficient of kinetic friction is 0.600 a.)How much work is done by that applied force on the block-floor system? b.)During that

    asked by Sam
  117. Physics

    Find the center of mass of the carbon monoxide molecule , given that carbon has a mass of 12 u, oxygen has a mass of 16 u , and the two atoms are 0.111 nm apart.

    asked by Mattie
  118. geometry

    solve this equation (w-9)*(w-4)

    asked by josh
  119. 2nd grade

    My tens digit is double the ones digit.I am less than 50 and greater than 40

    asked by Margeret
  120. chemistry

    what is the equilibrium concentration of acetate ion if the equilibrium concentration of acetic acid is .40 M, the pH is 3.85, and Ka is 1.8E-05?

    asked by Anna
  121. Chemistry

    What volume of a 0.33 M Mg(NO3)2 solution contains 96 g of Mg(NO3)2?

    asked by Kelsey G
  122. Texas History

    How did the law of April 6,1830 change relations betweens Texas and the Mexican government?

    asked by Brit
  123. chemistry urgent

    given the reaction: 2 Al + 3 H2SO4 -> Al2(SO4)3 + 3 H2 what volume of H2 gas measured at STP will be produced from 5.4 grams of AL reacting with an excess of H2SO4?

    asked by lianne
  124. physics

    Two thin rectangular sheets (0.22 m 0.35 m) are identical. In the first sheet the axis of rotation lies along the 0.22-m side, and in the second it lies along the 0.35-m side. The same torque is applied to each sheet. The first sheet, starting from rest,

    asked by mackenzie m
  125. Chemistry

    Cooking oil has a boiling pt of 200 degress, water is 100 degrees. explain theses facts given the strength of waters hydrogen bonds

    asked by Donna
  126. Math

    is the indefinite integral of 4x^3sinx^4dx = -cosx^4+c

    asked by Jess
  127. math

    How many different license plates could be made if they have one or two letters followed by 1,2,or 3 digits? Reptetitions are allowed. I figured that 26 would be for 1 letter and 52 for 2 letters so (26+52) but not sure how to figure the numbers part.

    asked by m
  128. Chemistry

    A 120. mL sample of a gas is at a pressure of 1.50 atm. If the temperature remains constant, what will be its volume at 3.50 atm of pressure?

    asked by Kiesha
  129. Pre-Algebra

    Write each ratio in simplified form. 6 3/10 to 1 4/5

    asked by Hayden
  130. college

    A ladder 10 feet long rests against a vertical wall. If the bottom of the ladder slides away from the wall at a speed of 2 ft/s, how fast is the angle between the top of the ladder and the wall changing when the angle is /4 radians?

    asked by Emilia
  131. 11th grade

    A balloon at contains 0.5 L of gas at a constant pressure of 1.0 atm. If the pressure is increased to 3.0 atm, what will be the volume of the gas?

    asked by Kiesha
  132. Physics

    If a baseball is thrown at an angle of elevation of 30 degrees, its range in the absence of air resistance is less than that of one thrown at ___. The answer is 55 degrees. My question is, how did my teacher get this answer? An explanation and an equation

    asked by Max Lee
  133. Math-Trigonometry

    Master Chief is trapped on an island with a Scorpion Tank as his only means of defense. An enemy Covenant jet fighter just landed on a smaller island across the water. Master Chief would like to fire a shell across the water directly at the jet. However,

    asked by Duane
  134. math

    a cold front moves in at noon and in 5 hours, the temperature had dropped 23%. the temperature at 5:00 p.m. was 14%. let x be the temperature at noon. write an equation to find x.

    asked by anne
  135. chemistry

    what is the pH of an .200 M aqueous solution of NaOH?

    asked by Anna
  136. chemistry

    A mixture of 8.00 g He and 26.5 g Ne has a pressure of 820. mm Hg. What is the partial pressure of each of the gases?

    asked by rose
  137. physics

    What force is needed to accelerate a child on a sled with the total mass of 43kg at 1.5m/s

    asked by karen
  138. 5th grade

    Draw a triangle with a perimeter of 50 ft.

    asked by Chance
  139. chemistry

    is a negative Kc possible. Also, is a negative Ka possible?

    asked by Anna
  140. 10th grade

    whats the answer to 54x2y - 12x2y2

    asked by unknown
  141. chemistry

    Which of the following acids has the weakest conjugate base? a....4.2E-09 b...9.2E-03 c....6.3E-06 d....1.2E-01

    asked by Anna
  142. science

    suppose you have7 pieces of wood shown to the right . predict what will happen to the mass of the pieces of wood if you put them together without cutting them to make a birdhouse explain

    asked by kelli
  143. chem

    when 1.00g of sucrose C12H22O11 was combusted in a calorimeter to give CO1 and H20, the temperature rose from 25.00 to 27.32 C. The calorimeter itself had a heat capacity of 837JC and was submersed in 1500.0g of water. Find the heat of combustion of

    asked by joanna
  144. chemistry urgent

    calculate the number of joules of heat required to change 85.0 grams of water at 25oC to steam at 10oC (heat of vaporization of water = 2260 j/g and specific heat of water = 4.18 j/g oC)

    asked by Lynn
  145. chemistry

    A sample of sulfer, mass 2.56 g is burned in excess oxygen inside a calorimeter of heat capacity 923JK and insulated by 815g of water. If the sole product of combustion is SO2, what is the expected increase in temperature? I don't need the answer, just the

    asked by joanna
  146. Chemistry

    A saline solution contains 1.3% NaCl by mass. How much NaCl is present in 83.2g of this solution?

    asked by Kelsey G
  147. physics

    A 9 kg block initially at rest is pulled to the right along a horizontal, frictionless surface by a constant, horizontal force of 18.8 N. Find the speed of the block after it has moved 3.3 m. Answer in units of m/s.

    asked by Anonymous
  148. math

    the number of pages is a 2-digit number. the number of photos on a page is a 1- digit number. the number of pages is 60 more than the number of photos on a page. the number of pages is divided by the number of photos on a page is 16. What is the number of

    asked by Chris
  149. math

    what is 0.0775 rounded to the hundredths place?

    asked by prishany
  150. Chemistry: gases, liquids, solids problem

    4 NH4NO3 -> 8 H2O + 4 N2 + 2 O2 What will be the total volume in liters of gas produced at 720. mm Hg and 570.0°C when 2.50 g of NH4NO3 completely decomposes? Use molar masses with at least as many significant figures as the data given.

    asked by Dani
  151. Math

    4700 is borrowed at a rate of 16% interest per year, compounded quarterly. Find the amount due at the end of 4 years

    asked by Jaclyn
  152. english

    Need help with writing an essay. My essay will be about giving advices to high school students on how to be a successful. I have to create arguements for it and I don't know how. At first I want to give a difinition of the word "Successful".Then write

    asked by Luna
  153. us history

    i need help with a good argument for pro socialism and a poster idea. help??

    asked by Brittanii
  154. 5th grade math

    6 1/8 - x = 1 7/8 ? would it be 4 1/8 = x

    asked by jill
  155. English

    1.He lived with his parents, brothers, and sisters. 2.Those in this small Mexican American community were worried and frightened. 3.That was the time when Cesar Chavez first lived among the migrant workers. 4.Chavez became a spokesperson for poor

    asked by chris
  156. Physics-Please check

    If I have a diagram of Kepler's laws of planetary motion and it shows change in t1 larger than change in t2 and A1 larger than A2 and asks the question: which of the following is correct? 1.A3 = A3 2.change in t3 > change t3 3.if change t3 = change in t2,

    asked by JamieLynne
  157. Chemistry

    An electrochemical cell is created using gold and magnesium half-cells. a. Determine which half-cell will undergo oxidation and which will undergo reduction, identify anode and cathode, and calculate the voltage for the cell. You do not need to diagram the

    asked by Jeffery
  158. FINANCE

    Gemini Real Estate is offered a $2 million line of credit for four months at an APR of 9%. This loan has a loan origination fee of 1.5%. What is the actual four-month interest rate paid, expressed as an EAR

    asked by KEVIN
  159. Physics

    An amusement ride consists of a large horizontal circular platform turning at 12 rpm. People attempt to sit on this platform without slipping toward the outer edge. The coefficient of static friction is 0.15. Determine the distance from the center of the

    asked by Tim
  160. math

    You and a friend each have a standard and well-shuffled 52-card deck of cards. You draw a card from your deck and your friend draws a card from her deck. Match the following results with their respective probabilities: Question 1 answers You each pick the

    asked by hi
  161. world history

    What does P.I.G.E.A.R.S stand for?

    asked by Danny Long
  162. Spanish

    El debate: Ya casi llegó el momento del debate. Aquí tienes algunos comentarios que el candidato está practicando para decir más tarde. Elige entre el subjuntivo y el indicativo para completar las oraciones con lo que dice. cumplir hacer dejar

    asked by amanda
  163. physics

    A projectile was fired at 35 degrees above the horizontal. At the highest point in its trajectory its speed was 200 m/s. If air resistance is ignored, the initial velocity had a horizontal component of 0. How is this possible? Someone explain it for me

    asked by AJ
  164. stats - URGENT!!!!

    the following sample observations were randomly selected: x: 2,5,6,8,9,11,15 y: 22,23,16,18,19,13,12 a)calculate the correlation coefficient, r b) determine the regression equation c) determine the value of Y when X=20

    asked by skitter
  165. algebra 2 multiple choice HELP

    find f(a), if f(t) = 2t2(squared)-t-2 A. 2(a+t)2(squared)-2t+1-2 B. 2(t+a)2(squared)-2(t+a)-2 C. 2a2(squared)-a-2 D. 4a2(squared)-2a-2 I put (squared) because the two in front of it means it's being squared... please help. thanks!

    asked by sara
  166. algebra

    Find the x-intercept and the y-intercept of the graph of: 4x-2y=8 a. (2, -4) b. -4;2 c. (4, -2) d. 2;-4 I'm stuck between a and d. anyone helpp?

    asked by sonya
  167. chemistry

    In propanol, cholesterol is 2.7 times more soluble at 43°C than at 20°C. If a saturated propanol solution is prepared at 43°C , what proportion of the cholesterol will crystallize upon cooling to 20°C?

    asked by lisa
  168. 4th grade

    CHIEF OR RULER OF A NARRAGANSETT TERRITORY

    asked by tina
  169. physics

    A 7.2 cm tall cylinder floats in water with its axis perpendicular to the surface. The length of the cylinder above water is 1.4 cm. What is the cylinder's mass density?

    asked by kate
  170. physics

    In a church choir loft, two parallel walls are 5.70 m apart. The singers stand against the north wall. The organist faces the south wall, sitting 0.900 m away from it. So that she can see the choir, a flat mirror 0.600 m wide is mounted on the south wall,

    asked by Jessica
  171. calculus

    find all critical points of f(x) = x^4 – 4x^3 + 4x^2

    asked by pinki
  172. Math

    Identify u and du for the integral. 1. The integral of [(cosx)/(sin^(2)x)]dx 2. The integral of sec2xtan2xdx

    asked by Jess
  173. chemistry

    is there a typo to this cell notation answer Au(s)|AuCl4-(aq), Cl-(aq)|| F2(g)| F-(aq) |Pt(s) If i look at the anode, should Cl- stay on the side of Au not AuCl4- Au + 4Cl- yield AuCl4- + 3e

    asked by flame
  174. geometry

    right triangle ABC with right angle C, AC=22 and BC=6, altitude CD where D is on hypotenuse AB. What is the ratio of the area of triangle ADC to the area of triangle CDB? Write ratio as n:1 and round n to the nearest hundredth.

    asked by suzy
  175. maths &chemistry

    Nitrogen tetraoxide is known to dissociate accoding to the equation;N2O4(g)_2NO2(g).A250mlsample of the gas mixture weighs 0.257bar.Calculate the partial pressure of each gas.(Hint:obtain the pressure it had before dissociation ,and then use the idea of

    asked by SAIDI
  176. college

    I have a project english composition 205, about the tom wait's musician

    asked by Mirna
  177. English

    This is the number of years that someone has lived, or that something has existed. (What is the part of speech of 'that'? Is 'that' a relative pronoun or a relative adverb? Can we use 'when' instead of 'that' in the sentence?)

    asked by rfvv
  178. algebra

    6x-7x=20 what is the value of x-

    asked by karla
  179. Physics

    A 400 N woman is totally immersed in a water tank and displaces of water. What is her density in ?

    asked by Sam
  180. Chem

    a container of 2.00 moles of an ideal gas as 1000 K undergoes a constant pressure and volume process in which the number of moles is increased to 5moles. what is the final temperature of the gas. How do I start this? Do I somehow use the ideal gas law?

    asked by Don
  181. geometry

    An arc ABC is one quarter of a circle with center B and radius 6. Rectangle EDFB is inscribed in ABC. If ED + DF = 8, find the perimeter ADCFE. Round your answer to the nearest hundredth.

    asked by antonne
  182. Chemistry

    I need to be able to tie in acetic acid and boric acid. To decipher properties of acid-base chemistry and how they adhere to Le Chatelier’s principle. I appreciate any input....

    asked by Colleen
  183. language (gerunds)

    The powerful writing made the novel exciting to read. I think that there is not a gerund in this sentence. Or would writing be the gerund used as a subject?

    asked by michael
  184. algebra1

    -3+8x-8=-8 how do u solve it?

    asked by josh
  185. physics help me please!

    A certain wave is incident on an interface at an angle of 40 deg. The wave emerges into the other material at an angle of 30 deg. Crossing the interface, the wave: a. increased speed b. reduced speed c. maintained constant d. more info is needed I think

    asked by Amber
  186. Calculus

    a particle moves along a line so that at any time t its position is given by x(t)=2(pi)t + cos2(pi)t find velocity find acceleration what are the values of t, 0

    asked by John
  187. chem

    Classify each of the following reactions in as many ways as possible. (Select all that apply.) CuO + 2 HCl --> CuCl2 + H2O you can select: -acid-base(unsure because there is an acid but im not sure if theres a base) -double-displacement -gas evolutionx

    asked by hannah
  188. chemistry urgent

    if 100 g of iron were reacted with 100 g of oxygen according to the reaction below, the maximum yield in grams of Fe2O3 would be: Dr. Bob. Please help.

    asked by Lynn
  189. calculus

    Find the equation of tangent line to the curve Y=2/x^2+x At the point where x=1

    asked by pinki
  190. Geometry

    If the angles of a triangle have the ratio 3:4:5 and you want to know what they are would you go 3x + 4x + 5x = 180 and solve for x?

    asked by Debbie
  191. Calculus

    f(x)=xe^(-2x) with domain 0< or equal to x< or equal to 10 find all values of x for which the graph of f is increasing and all values of x for which the graph is decreasing give the x and y coordinates if all absolute max and min points

    asked by John
  192. math

    Mr. Jackson is preparing bags of treats to give trick or treaters on Halloween. He has 48 pieces of candy and 60 pieces of gum. he uses all the candy and gum, and he puts the same ratio of candy to gum in each bag. What is the largest number of bags he

    asked by Katherine
  193. biology

    The function of neurons is to a. maintain a difference in electrical charge across the cell membrane. b. have specific ions cross the membrane through ion channels. c. maintain a membrane potential with charged ions on either side of the cell membrane. d.

    asked by Lily
  194. math

    The numbers 1-10 are placed on cards, and the cards are put in a hat. If two cards are drawn, in order, without replacement, what is the probability that one number is even and the other a prime? I know there are 4 primes-2,3,5,7 and 5 even numbers

    asked by m
  195. math

    How many games are played in a women's soccer conference if there are eight teams and all teams play each other twice? I figured 8x7x2=112 since this is 8 teams and 7 opponents per team and playing twice am i right?

    asked by m
  196. Algebra 2

    Three whole numbers, when added two at a time, have sums of 763, 1003, and 1064. Compute the largest of the original three numbers. I have no idea how to do this..HELP PLEASE?

    asked by Mary
  197. geometry

    If XZ = 18 cm, YZ = 27 cm, and AC = 28 cm, what is the length of BC? XZ, YZ= triangel (1) AC=triangle (2)

    asked by matt alicea
  198. biology

    The brain stem is responsible for a. directing information in the brain and secreting hormones. b. regulating vital functions and memory. c. motor processing and regulating homeostatic functions. d. sensory processing and regulating balance. B?

    asked by Lily
  199. physics

    car has tires of radius 25 cm. The car accelerates from rest at a constant rate of 2.0m/s/s find angular acceleration. find angular displacement. how many revolutions is this?

    asked by Anonymous
  200. stats - URGENT!!!!

    the following sample observations were randomly selected: x: 2,5,6,8,9,11,15 y: 22,23,16,18,19,13,12 a)calculate the correlation coefficient, r b) determine the regression equation c) determine the value of Y when X=20

    asked by skitter
  201. science

    how much energy is required to raise 5 kg of silver 36 degrees celcius with a specific heat of 234 j/kg degrees celcius

    asked by justin
  202. 5th grade math

    The number of pages is a 2-digit number. the number of photos on a page is a 1- digit number. the number of pages is 60 more than the number of photos on a page. the number of pages is divided by the number of photos on a page is 16. What is the number of

    asked by Chris
  203. physical science

    what does Q=m times t times c. mean and wat are the meaning of each letter

    asked by marco
  204. physics

    a 145g baseball is thrown up at 40 m/s. after traveling a distance of 50m in the air, the baseball is caught. the ball experienced air resistance of what magnitude?

    asked by Anonymous
  205. English question

    Why do you think Douglass says of the killing of slave Demby ‘in an instant poor Demby was no more. His mangled body sank out of sight, and blood and brains marked the water where he stood.”? To me it seem as if hes sayint how he died instantly but idk

    asked by Kyle
  206. chemistry urgent

    what volume in liters of gaseous hydrogen chloride can be prepared from 40.0 liters of hydrogen with an exces of chlorine? all volumes are measured at STP: H + Cl -> HCl

    asked by lianne
  207. Finance

    A firm issues three-month commercial paper with $200,000 face value and receives $192,000. What is the EAR the firm is paying for these funds? I WOULD BE HAPPY IF SOME ONE CAN RESPOND TO MY QUESTION IN NUMCERS.

    asked by KEVIN
  208. physics

    Suppose you are riding a stationary exercise bicycle, and the electronic meter indicates that the wheel is rotating at 8.6 rad/s. The wheel has a radius of 0.30 m. If you ride the bike for 2070 s, how far would you have gone if the bike could move?

    asked by michelle
  209. physics

    ball rolls with a speed of 2 m/s across tabletop that is 1 meter above floor. Reaching edge of table, ball follows parabolic path to landing spot on floor. How far along the flor is this spot from the table? How do I set this up? Thank you.

    asked by anonymous
  210. Physics

    A 10.0 g bullet is fired into a 1.0 kg block initially at rest on a rough surface and connected to a spring with k = 200N/m. Immediately following the collision the block has a speed of 2.0 m/s. The coefficient of friction between the ground and the block

    asked by Hailey
  211. English

    1.(The hikers walked) until they were exhausted. 2.Has John met the family (who moved in next door)? 3.Gerry needs the book (that is on the shelf). Identify the word group in () and tell if independent clause or not an independent clause. 1.Independent

    asked by Tracy
  212. physics

    a 1200 kg car has KE=300,000 J. What is the cars velocity?

    asked by Fred
  213. physics

    Suppose that you measured the moment of inertia of the system as I = 5.05 kg-m2. Assume the diameter of the pulley around which you wrap the string is d = 2.5 cm. a) suppose the system is initially spinning at angular speed ωo = 2.05 rad/s. After you drop

    asked by dan
  214. math

    66 2/3 % of what number is 64.2% I know the answer is 64.2% put I need the steps to get there.... thank you

    asked by ray
  215. grade 9 GEOGRAPHY

    I am doing a project on the mixedwood plains. I have written this question before but I just want to know if I am on the right track. I need to to find suggestions on how the sensitive tourist can minimize their impact on the local environment and

    asked by peyton
  216. brooks

    A 3.90 kg block is in equilibrium on an incline of 24.1◦. The acceleration of gravity is 9.81 m/s2 . What is Fn of the incline on the block? Answer in units of N.

    asked by brooks
  217. Probability and Statistics

    Can someone tell me what formula I should use? The number of milligrams of tar in filtered and unfiltered cigarettes is being compared. The following cigarettes are pulled to be part of the samples: Filtered: bunch of data Unfiltered: bunch of data The

    asked by Samuel
  218. geometry

    what is 5-y=3/4x in slope intercept form?

    asked by Rose
  219. math

    Stan wants to arrange his books in order of size. Half of the books are medium, 2/10 are large and 12 are small. What is the total number of books Stan has?

    asked by Anonymous
  220. 5th math

    5.6 +(0.17 + 126)= ? (5.6______)+ 126) 69*(_____*426)=(69*426)*1.4 please! help me with these problem t hank you!! show me how you got an answer for each problem too.

    asked by pat
  221. Physics Help PLEASE!!!

    A spring that is 0.7 m in length elongates to 1.06 m when a 20 Newton force is exerted to stretch the spring. By how much more does the spring stretch when an additional 8 Newtons of force is exerted on it? 1.01 0.053 0.072 0.45 0.144 0.561 0.736 1.06 I

    asked by Jael
  222. Calculus

    The machine earns the company revenue at a continuous rate of 62000 t + 38000 dollars per year during the first six months of operation, and at the continuous rate of $69000 per year after the first six months. The cost of the machine is $170000. The

    asked by Will
  223. child care

    which of the following is an obstacle to learning for a begininning mover? A.knowledge of what elements of the movement to focus on B.chronic indifference characteristics between birth and age three C.shorter time to monitor perceptual input from the

    asked by Shannon
  224. Language (gerunds)

    Pam is studying for her French exam. I know that studying is the gerund, but is it a do, io or predicate nominative?

    asked by michael
  225. English

    1. This is my cousin David. 2. Please meet my cousin David. 3. Let me introduce my cousin David. (Do they have the same meaing? Are they the expressions we can use when we introduce somebody to others? Why do we have to use 'meet' in this situation? Can't

    asked by rfvv
  226. geometry

    The distance between Sue and a dude ranch was 30 mi. straight accross a rattlsnake-infested canyon. Instead of crossing the canyon, she hiked due north for a long time and then hiked due east for a shorter leg of the journey to the ranch. If she averaged 4

    asked by antonne
  227. marketing

    Which of the following statements regarding marketing strategies is FALSE? A. These strategies must meet the needs of target customers, and a firm is likely to get a competitive advantage if it just meets needs in the same way as some other firm. B. These

    asked by Anonymous
  228. programming

    Write a top down program to calculate the velocity and the height of a ball of mass m thrown at mars 40times

    asked by sog
  229. English

    1. I cannot be an actor. 2. I am not an actor at all. 3. I cannot become an actor. (What does #1 mean? Is #1 similar to #2 or #3?)

    asked by rfvv
  230. College Algebra

    ln 2+6 ln x+4 ln (x^2=8) How would I rewrite the expression? I'm struggling in Math.

    asked by Katie
  231. Ethics

    What differentiates the act of grouping people from the act of stereotyping?

    asked by Rochelle
  232. Chemistry

    How does the outer energy level(period)relate to the atomic radius?

    asked by Sandy
  233. chemistry

    Which of the following mixtures would made the most effective buffer? a.....100. mL 5.0M HF/0.05M NaF b....100. mL 0.05M HF/0.05M NaF c....500. mL 5.0M HF/ 5.0M Nal d....100. mL 5.0M HF/5.0M NaF

    asked by Anonymous
  234. Chemistry

    Calculate the concentration of the solution in mass percent: 9.95 g C2H6O in 65.1 g H2O.

    asked by Kelsey G
  235. Chemistry

    Calculate the concentration of the solution in mass percent: 122 g KCl in 628 g H2O.

    asked by Kelsey G
  236. algebra

    the length of a rectangular parking lot is 3 meters less than twice its width, and the perimeter is 408 meters, find the length of the parking lot.

    asked by peeka
  237. Chemistry

    Determine the amount of potassium chloride in each of the following solutions: 21.7g of a solution containing 1.10% KCl by mass.

    asked by Kelsey G
  238. Calculus

    What are the x-coordinates of the points of inflection for the graph of f(x)sin^2x on the closed interval [0,pi]?

    asked by Angela
  239. physic

    one airplane travels due north at 300 km/h while another travels due south at 300km/h. select the false statement.

    asked by mary
  240. English

    1.With a cool, silent determination (that seemed to be instinctive), the kitten stalked and pounced on the ball of the yarn. 2.The fans were cheering (as though they had just won the national championship). 3.(As the sun set), a feeling of peace came over

    asked by Tracy
  241. english

    metaphors for sports

    asked by katy
  242. math

    the number of pages is a 2-digit number. the number of photos on a page is a 1- digit number. the number of pages is 60 more than the number of photos on a page. the number of pages is divided by the number of photos on a page is 16. What is the number of

    asked by Chris
  243. Math

    a rectanglar prism has a volume of 48 cubic feet and a surface area of ** square feet. What are its dimensions?

    asked by Mally
  244. algebra 2

    Find the x-intercept and the y-intercept of the graph of: 4x-2y=8 a. (2, -4) b. -4;2 c. (4, -2) d. 2;-4 I'm stuck between a and d. anyone helpp?

    asked by sonya
  245. Astronomy

    Which of the following distance measuring techniques works to measure distances to other galaxies beyond the Milky Way? CHECK ALL THAT APPLY A) Hubble's Law B) main sequence stars C) Cepheid variable stars D) parallax E) radar ranging F) galaxy rotation G)

    asked by Dre
  246. physics

    Posted by sandhu on Tuesday, November 30, 2010 at 1:17am. A T is made of two identical 740 g thin solid rods. The moment of inertia of the T about an axis perpendicular to the screen through point at one end of a rod is determined experimentally to be 0.68

    asked by sandhu
  247. PHYSICS

    A .01kg bullet traveling at 800m/!@#$%^&s a disk with a radius of R=.1m at R/2 and leaves with a speed of 400m/s. what is the angular speed of the disk right after? (omega) I used conservation of momentum and the rotational inertia for a disk and found

    asked by Taylor
  248. economics help

    I need a specific article that deals with monopoly power, either regulated or illegal attempts at monopolization.

    asked by tom
  249. Spanish

    would "tomar algo" mean to take something and to drink? or would to take something = tomar

    asked by Amy
  250. collage physics

    a block of wood rest on a plane incline at 35 degrees to the horizontal.if the coefficient of the static friction between the surface is 0.45.determine: a) what is the horizontal force that must be applied to the block to initiate motion up the plane b)the

    asked by troy
  251. Science

    A ball dropped from a height of 125 m takes 5 s to hit the ground and is traveling at the rate of 50 m/s when it hits. After 3 seconds, the ball travels at a rate of ___? After 4 seconds?

    asked by Malou
  252. math

    (5x5)+2-1 =

    asked by julie
  253. Math please help

    Let s and t be any two whole numbers, excluding 0. True or False The statement s/t = t/s is always true? and What did you do first to answer this question?

    asked by Jenni
  254. math

    the difference of a cirumfrence and diameter of a circle is 120m what is the area in square meters

    asked by giridhar
  255. 3rd grade

    In doing alphabetical order which of these words com first?its or it's

    asked by Anonymous
  256. math

    What is 95 times 18

    asked by sarah
  257. math

    there were 93 students going to a nature camp. after equal groups of fewer than 10 students were formed for hiking, 2 students were left over.how many equal groups were formed?

    asked by Anonymous
  258. Spanish

    How would I say "He looks at art." Thank you

    asked by Anna
  259. english

    what are some websites that can answer my questions and also if you this please help me. The question is "What can you suggest to community as a way to act locally while they think or worry about global descisions? Thank YoU!

    asked by Aliyah
  260. algebra 2

    3. Identify the range of y=|x|-4 A. [x|x≥4] B. [y|y≥-4] C. [y|y≥0] D. all real numbers I'm confused about this question, any help???

    asked by sonya
  261. English

    1.Road crews are making repairs on Willow Street, (where Jeremy lives). 2.According to some people, (when the sky is red in the evening), the weather will be nice the next day. Tell if the clause in () is adj or adv clause. 1.adj 2.adj

    asked by Tracy
  262. geometry

    A RHOMBUS HAS ONE ANGLE THAT MEASURES 40 DEGREES AND A PERIMETER OF 100 FEET WHAT ARE THE MEASURES OF THE REMAINING ANGLES

    asked by JOHN
  263. physics

    a 145g baseball is thrown up at 40 m/s. after traveling a distance of 50m in the air, the baseball is caught. the ball experienced air resistance of what magnitude?

    asked by Kiddo
  264. English paragraph

    Considering the fact that I am a survivor of a relatively traumatic car accident, I am exceedingly cautious when it comes to driving and am advocate for doing anything to improve the well being of our community on the road. A significant problem relating

    asked by fdgjfdkgjfdkg
  265. physics

    a 145g baseball is thrown up at 40 m/s. after traveling a distance of 50m in the air, the baseball is caught. the ball experienced air resistance of what magnitude?

    asked by Kiddo
  266. social studies

    Based on how compelled is used in this sentence-"My father was anxious to see me develop into a good man..{so} he compelled me to memorize all of Homer", what do you thinks it means? A. asked B.taught C.forced or D.dared? I think the answer is C.forced my

    asked by Reed
  267. Math

    A ladder is two feet longer than the height of a certain wall. When the top of the ladder is placed against the top of the wall, the distance from the base of the ladder to the bottom of the wall is equal to the height of the wall. How high is the wall?

    asked by Naomi
  268. Physics Help PLEASE!!!

    What approximate change in decibels does an observer experience form a sound source if the observer moves to a new location that is 67% as far from the source? 23 -23 40 2.76 -2.76 1.94 -1.94 2.57 -2.57 0 do I multiply .67 times 10 log .67?

    asked by Jael
  269. stats - URGENT!!!!

    the following sample observations were randomly selected: x: 2,5,6,8,9,11,15 y: 22,23,16,18,19,13,12 a)calculate the correlation coefficient, r b) determine the regression equation c) determine the value of Y when X=20

    asked by skitter
  270. algebra

    -2(x+4)=-48

    asked by tony
  271. chemistry

    need help figure out how to do these problem: 1)Calculate the pH of this solution: 1.55 X 10^-2 M HBr 2)Determine the pH of this solution: pOH = 8.3 thanks

    asked by amy
  272. english

    i have to make analogys for my vocab words and i need help apex:peak;________:__________ Assimilate:_____;_______:_________ interim:interval;_____:_______ and also for Meander,metropolis,momentous,obstrepous,pensive perilou'shoddy,surly,and tirade

    asked by kayla
  273. American Government

    I really need help on this journal activity. In this assignment, you are to take each of the purposes form a more perfect union, establish justice, insure domestic tranquility, provide for the common defense, promote the general welfare, and secure the

    asked by Cassandra
  274. Math

    Tina can drive 46.8 miles on $6 worth of gasoline. Write a proportion(equation) that can be used find x the number of miles she can drive on $25 worth of gasoline.

    asked by Jenni
  275. Geometry

    How do you prove that the sum of distances to a point from the interior of an equilateral triangle is equal to the height of a triangle, therefore it is invariant and that a parrallelogram's angular bisectors from a rectangle.

    asked by Desmond
  276. chemistry

    how do I write this equatio out and is it stoichiometry problem. Find the mass of sodium hydroxide needed to neutralize enough nitric acid to create 2.0 gram of sodium nitrate?

    asked by Tosha
  277. f.u.t minna

    the period of a simple pendulum(T) depends on a mass of the bulb(M) length of the tred(L) and acceleration due to gravity(g) use the method to find the expression for the of oscillation(T).

    asked by akeem
  278. Physics

    i have to build a enery effiecient vehicle for class and do a opapp paper and i need help im so confused.... any ideas?

    asked by bobbi..HELP IM SO CONFUSED
  279. physics

    can someone answer my question that i posted below?

    asked by bobbi..HELP IM SO CONFUSED
  280. Math

    Tina and her sister evenly split a $10 lottery winning. If tina promised to give her brother 1/4 Of her share, what fraction of the original $10 did she give her brother?

    asked by Bill
  281. chemistry

    a compound containing only carbon and hydrogen consists of 362 g of C and 30.1 g of H. what is the empirical formula of the compound?

    asked by Lynn
  282. writing process part 2

    i need help on writing an eight sentence paragraph. i get a great idea(thought)about what to write and when i do start writing i freak out and go blank.

    asked by kat
  283. chemistry

    hydrogen gas is collected in a bottle, and the pressure of the gas is 892 torr at 24 °C. what is the pressure of hydrogen gas when the temperature decreases to 20 °C?

    asked by Lynn
  284. chemistry urgent

    if 500 ml of HCl solution is needed to react with 2.43 g of Mg, what is the molarity of the HCl solution?

    asked by Lynn
  285. math

    how do i solve 8 times 493 using distributive property. then draw an array showing work

    asked by lisa
  286. calculus

    Jill likes to play Blackjack. She heard about a winning strategy to ensure she does not lose. The strategy is: choose a starting amount to bet, and then double your bet if you lose. Keep doubling your bet until you win. When you win a hand, go back to the

    asked by Nic
  287. Oedipus

    What actions show Oedipus wasn't completely good? In the play Oedipus Rex, I need solid evidence of Oedipus' actions that show he was not completely good nor completely evil. I have what I need for reasons he is not completely evil, but to me he seems like

    asked by Norah
  288. edu 310

    How has the content and professional standards movement in k-12 changed the way education teach students in american?

    asked by luly
  289. chemistry

    which of the following is a characteristic of a catalyst? a...can convert an endothermic to an exothermic reaction b...raises the EA c...raises the energy of the reactant(s) d...is recovered unchanged after completion of the reaction

    asked by Anonymous
  290. Calculus

    what is Trapezoidal rule? How does it work in finding the area under the curve(s)?

    asked by prakash
  291. Physics

    A 60kg parachutist has a PE=70,000J. What is his height?

    asked by Ted
  292. physics

    The Cedar Bluff express KAT bus averages 15 mph for 20 minutes, and then 32 mph for 14 minutes. What was its average speed? (mph)

    asked by Dan
  293. physics

    an atwood machine is set up with m1=234 grams and m2=485 grams. the height of m2 above the floor is 137 cm, and the system is released from rest. the pulley is frictionless. what is the acceleration of this system? what is the tension in the string? how

    asked by Haley
  294. science

    Write a c program (1.Add record 2.Delete record 3.View record 4.Search record) for bike category.?

    asked by bappi
  295. :)

    Thank you Dr.Bob222

    asked by Tosha
  296. Math

    What is the inverse of f(x) = x^2 − 7, x ≤ 0

    asked by jake
  297. physics

    A T is made of two identical 740 g thin solid rods. The moment of inertia of the T about an axis perpendicular to the screen through point at one end of a rod is determined experimentally to be 0.68 kg-m2. What is the length of the rods?

    asked by sandhu
  298. Acct

    Institutions in the economy that help to match one person's saving with another person's investment are collectively

    asked by Jim
  299. Objects IN motion

    Table 2 shows the velocity of an object at different times. Time(s)| Velocity(cm/s east) 0 | 0 5 | 7.8 15 | 24.3 20 | 31.8 35 | 57.3 ___________________________ K they have given me the velocity for 5 s, 15, etc. but I want to know the velocity for the

    asked by Teya
  300. college

    Positive charge is distributed throughout a long non-conducting cylindrical shell of inner radius R and outer radius 2R. At what radial depth beneath the outer surface of the charge distribution is the electric field strength equal to one-half the surface

    asked by fatima
  301. math

    in new jersey compounding interest is prohibited.so whatwould be owed in the case of the business partner giving his co-partner a 15000 mortgage at 12%interest and no payments were made in 17 years.

    asked by martin sostre
  302. Biology

    A baby born without the ability to produce immune system cells may survive for several months, even when exposed to potentially deadly diseases. How?

    asked by Bee
  303. physics

    a mass m1 moves along the x-axis with velocity of magnitude v0 on a frictionless table. it strikes another mass m2 which is initially at rest. the mass m1 goes off along the the y-axis. if half the original kinetic energy is lost in the collision, with

    asked by shamrakh
  304. 10th grade

    as you are driving your car on the freeway, your tires are rotating at a rate of 920 revolutions per minute. The diameter of each tire is 24 inches. What is the total feet traveled per minute?

    asked by kathy
  305. Physics

    A 100.0 meter long transmission cable is suspended between two towers. If the mass density is 2.00 kg/m and the tension in the cable is , what is the speed in m/s of waves on the cable?

    asked by Alex
  306. geometry

    a regular hexagon is inscribed in a circle. The radius of the circle is 18 units. What is the area of the region bounded by the inside of the circle and the outside of the hexagon. Round your answer to the nearest hundredth.

    asked by suzy
  307. MATH

    Misty uses 3/4 of a bag of noodles when she makes a cartain casserole. What is the greatest number of casseroles she can make from 6 1/4 bags of noodles?

    asked by Bill
  308. English

    How do you pronounce "Beatrix"? Is it a male name or a female name?

    asked by rfvv
  309. PHILOSOPHY

    Is a person more than a physical body? What is the mind? What is thought?

    asked by Rochelle
  310. chemistry

    Why is the pH at the endpoint of the titration of a weak acid by NaOh greater than 7.0?

    asked by Anonymous
  311. english

    "Yes, I made an important medical discovery. But I couldn't have done it without my team," said Dr.Jones. What's a word that discribes the sentence above?

    asked by thalia
  312. Math

    What is the complete factored form of the following polynomial? 15j^3+30j^2 A)5j(3j^2+6j) B)15(j^3+2j^2) C)5(3j^2+6j) D)15j^2(j+2)

    asked by Bryson
  313. Language (gerunds)

    Fielding a pop fly on a sunny day can be a tricky play. I'm having a hard time... I know: on a sunny day is prep phrase can be verb tricky adj play do fly noun is fielding a gerund? would it be used as the subject?

    asked by michael
  314. chemistry urgent

    hydrogen gas is collected in a bottle, and the pressure of the gas is 892 torr at 24 °C. what is the pressure of hydrogen gas when the temperature decreases to 20 °C? chemistry - DrBob222, Tuesday, November 30, 2010 at 1:25pm (P1/T1) = (P2/T2) Dear Dr

    asked by Lynn
  315. algebra1

    (w-9)*(w-4) im really struggling ppl plz help

    asked by josh
  316. chemistry

    to find the molarity of an aqueous solution of an ionic solid what do you need to know? a... mass of solid, formula of solid, volume of water b...moles of solid, formula of solid, volume of water c....mass of solid, formula of solid, volume of solution

    asked by Anna
  317. physics

    An object accelerates uniformly from rest at a rate of 2 m/s2 for 3 s and then 5 m/s2 for 15 s. Find its final velocity?

    asked by Anonymous
  318. chemistry

    most salts are more soluble in water at higher temperatures than at lower temperatures but not all. What are two exceptions? Explain how these salts can be less soluble at higher temperatures.

    asked by Anonymous
  319. chemistry

    which of the following salts do you expect to have the lowest water solubility? a...SrF2 b...Rb2O c...Ga2O3 d...CsNO3 All the numbers are subscripts

    asked by Anna
  320. geometry

    we are a team of students studying for a test - asking again - thanks - An arc ABC is one quarter of a circle with center B and radius 6. Rectangle EDFB is inscribed in ABC. If ED + DF = 8, find the perimeter ADCFE. Round your answer to the nearest

    asked by antonne
  321. math

    Solve for x. -3x - 8 + 6x = 7

    asked by josh
  322. 4th grade

    How can you show without multiplying that 4/9 is greater than 0.4?

    asked by lost
  323. Physics

    What would the gauge pressure be on a diver in atmospheres if she could dive to a depth of one km in sea water? One atmosphere is 1.01 X 10^5 N/m2. The density of sea water is 1.03 X 10^3 kg/m3.

    asked by Alex
  324. Chemistry

    What is the pH when 25 mL of .20 M CH3COOH has been titrated with 35 mL of .10 M NaOH? I got the answer .0375 but that is incorrect if you could show me steps maybe i can figure out what i did wrong thanks

    asked by Mya
  325. soc

    Read the case study, Culture at Wal-Mart on pg. 68. Western companies often impose western culture on the country in which the business is launched. Locate an article that contains a similar situation as Wal-Mart and summarize the findings.

    asked by Jan
  326. Math

    Laura takes a random survey of the students in her school. Of the 48 students asked, 16 plans to go to the football game. There are 231 students in her shcool. What proportion can she use to find s the total number of students expected to attend the game?

    asked by Bill
  327. Chemistry

    The solubility of calcium sulfate at 30 degrees C is .209 g/100mL solution. Calculate its Ksp i calculated it and got 1.5 x 10 ^-2 but the program said that it was wrong if you could help explain how to do it i would appreciate it

    asked by Joe
  328. Chemistry

    What is the maximum [Ba^2+] that can be maintained in 1.100 L of a 030 M solution of Na2SO4?

    asked by Jeremy
  329. Chemistry

    Determine the amount of potassium chloride in each of the following solutions: 22.2kg of a solution containing 17.2% KCl by mass.

    asked by Kelsey G
  330. math

    what is the area and perimeter of 1.7*4

    asked by ashley
  331. biology

    what is cell history

    asked by karina
  332. 5th grade math

    100cm=1m How many square cm = one square meter? 6 1/8 - x = 1 7/8 ? would that be 4 1/8 Thank you so much for your help.

    asked by jill
  333. word processing part 2

    It has to be 8 sentences, Can someone help me out and correct me? Alcohol (ethanol) impairs your judgment and depending on your size and tolerance, you can do some substantial damage. When you are behind the wheel, it is your responsibility just as much as

    asked by jackie rios
  334. chemistry

    if C6H12O6 -> 2 C2H5OH + 2 CO2 represents the fermentation of sugar to produce alcohol, and the reaction is only 40.0% efficient (% yield), what is the actual yield of alcohol from 454 g of C6H12O6

    asked by lianne
  335. business law

    Case study- Lola Langston decides to make it rich by forming a general partnership with her friend Irvine and opening up go-go dancing bars with females and males dancing on a stage in “skimpy” clothing. The first bar is in the town of Bugtussle and

    asked by Alex
  336. Texas History

    What mexican actions led to further conficts with settlers? It was around 1830

    asked by Brit
  337. Chemistry

    A 335 -mL can of soda pop is found to contain 40 g of sucrose (C12H22O11). What is the molarity of the solution with respect to sucrose?

    asked by Kelsey G
  338. Algebra

    Find two consecutive even intergers such that the square of the smaller is 10 more than the larger.

    asked by Anonymous
  339. Statistics

    McMaster University researchers Margo Wilson and Martin Daly showed 209 male and female students pictures of attractive and not-so-attractive people of the opposite sex. Each was then offered a chance to win a prize. They could accept a check for between

    asked by Mandy
  340. 6th grade

    explain how there can be more heat energy in an iceberg than in a pot of boiling water

    asked by Anonymous
  341. Health

    Describe the path that food takes from the time you ingest it until it is eliminated from the body?

    asked by MR
  342. chemistry urgent

    if 100 g of iron were reacted with 100 g of oxygen according to the reaction below, the maximum yield in grams of Fe2O3 would be: chemistry urgent - bobpursley, Tuesday, November 30, 2010 at 4:20pm Balance the equation. Note the coefficents on Fe and O2,

    asked by lynn
  343. Chemistry

    A sample of oxygen gas has a volume of 8.00 L at 20.0 ° C and 700. torr. How many moles does the sample contain?

    asked by Kiesha
  344. chemistry

    Imagine that one carbon in buckminster- fullerene (C60) is replaced by a silicon atom,yielding SiC59. This molecule can then orient in 60 different ways. What is the entropy of one mole of SiC59 at T = 0 K? 1. 4.53 × 10−20 J/K 2. 27.3 kJ/K 3. 34.0 J/K

    asked by Bob
  345. Physics

    A 70 kg man just before contact with the ground has a speed of 5 m/s In a stiff-legged landing he comes to a halt in 7ms (miliseconds). Keeping in mind that the average net force acting on the man includes both the force of the ground on the man and the

    asked by Kevin
  346. physics

    A ball has an initial velocity of 22.0 m/s but is accelerating at a rate of -1.0 m/s squared. After it has traveled 25.0 meters what is its new velocity? The answer is 20.8 m/s squared. I don't no how my teacher got that answer. please help as soon as

    asked by Trista
  347. English

    I'm reading Thoreau's "Where I lived and What I lived For-"Solitude and Conclusion." I don't understand how to answer this question. What does he compare man and his life to? Thank you

    asked by Julie
  348. science

    If one parent has AB and one parent has O blood types, what are the possibilities of blood types for their children

    asked by laura
  349. 12th grade English

    I need help i have to have a literary term for ch. 1,2,3,5,12,13,14,16,and 26 im having trouble figuring out how to do that so can somone help me please

    asked by Brittany
  350. statistics

    CALCULATE THE PERCENTAGE OF CASES THAT FALL BETWEEN THE SCORES 120 AND 110 ON A NORMALLY DISTRIBUTED iq TEST WITH A MEAN OF 100 AND A STANDARD DEVIATION OF 10

    asked by ROXIE
  351. Constant acceleration

    How is constant acceleration shown on a velocity-time graph? Isn‘t it shown as a straight line rising upward?

    asked by Teya
  352. Chemistry

    I wanted to find out what the difference is between acetic acid and boric acid and how they relate to the LaChatelier's principle.

    asked by Colleen
  353. Calculus

    Find all points on the graph of f(x)=xe^x at which the tangent line is parallel to the line y-3x=4. i figured out that f'(x)=3 but i don't know what to do with that.

    asked by Leanna
  354. ela

    can you give me an example of classical allusions please but from romeo and juliet

    asked by anu
  355. 6th grade

    A duck is 17 feet below the surface of a lake. The duck begins to head to the surface at a rate of 3 feet per second. Write an expression to describe the duck's position after s seconds?

    asked by Wilson
  356. english

    We have a worksheet that says classify eash sentence.. What does that mean?

    asked by kesha
  357. child care

    children with special needs should

    asked by sara
  358. 1st grade

    how many miles does the earth travles a minute or second ????

    asked by lele
  359. english

    is anyone know what an anology for meander be?

    asked by HELP URGANT!
  360. HCA 220

    I need help on storyboard presentation that is due tonight, need a draft and final that is due on sunday. Not to sure how to start it off

    asked by Sharon
  361. Physics

    A ball thrown horizontally at 18.3 m/s from the roof of a building lands 36.3 m from the base of the building. How tall is the building?

    asked by Chris
  362. help! physics

    Two masses (m1 = 532 grams, m2 = 114 grams) are connected with a rope through a frictionless pulley The ramp has an elevation angle θ = 65.3° and a coefficient of friction μ = 0.184. What are Fll and Fperpendicular for m1? What is the normal force on

    asked by Haley
  363. Chemistry-confused

    What is the molarity of a 15%(w/v) solution of nickel (III) ferrocyanide? I can't figure out what nickel(III) ferrocynade is?

    asked by Beth
  364. hcs 533

    What are the various types of health care information structures/systems and why are they important?

    asked by keisha
  365. edu

    What do you believe will be the future of American k-12 education and how will you make an impact on it?

    asked by luly
  366. social studies

    information about landform

    asked by abby
  367. Chemistry

    Molarity of 350ml of HCl?

    asked by Anonymous
  368. ethics

    If you are an employee of a business, and learn that it is violating the law, what would you do in this situation? What are your ethical obligations? Under what conditions would you report the illegal activities? Under what conditions would you keep quiet?

    asked by Anonymous
  369. childcare

    when working with special needs/learning disabled children,caregivers should a.provide positive role models for them. b. ignore their disabilities. c. try to do as much as possible for them. d. instruct other children to disregard them. i think is a

    asked by sara
  370. english

    how do a write a paragraph on how i plan to obtain my goal as a Doctor?

    asked by Natasha
  371. childcare

    exam 00383001 need help withj 5 questions

    asked by tiffany
  372. chemistry

    what can we say about the EA for an exothermic reaction? a...must be

    asked by Anonymous
  373. Physics

    If you are given numerous envelopes that contain an unknown amount of "tiles" and are given the mass of each of those envelopes,how might you determine the mass of just one tile?

    asked by Jordge
  374. Chemistry

    A mixture of 6.50 g He and 37.0 g Ne has a pressure of 610. mm Hg. What is the partial pressure of each of the gases?

    asked by Chantz
  375. 3rd grade

    i am a number between 1 and 5. you can make exactly 3 arrays with me. who am i?

    asked by naomi
  376. physics

    What is the apparent weight of a 36 kg block of aluminum (density 2700 kg/m3) completely submerged in a fluid with density 1300 kg/m3?

    asked by kate
  377. microeconomics

    Consider two firms X and Y produce identically tasting cold drinks. In order to increase the demand for its cold drink, firm X increases its advertisement outlay. However the advertising doesn’t increase its demand in the long run. Explain why this must

    asked by mary- please check for accuracy.
  378. child care

    one of the most important functions of a childs peer group is a. serving as a replacement for the parents. b.providing opprtunities for competition. c. fostering love and understanding. d. teaching about the world outside the family.

    asked by sara
  379. SCIENCE

    WHAT IS THE AVERAGE SPEED OF A BALL FALLING FROM THE HIEGHT OF 125 METERS AT THE SPEED OF 5 SECONDS TO HIT THE GROUND IN METERS PER SECOND?

    asked by SPARK
  380. math

    Use a table of values to graph the equation. solve for y x= -1,0,1 y= y=2/3x+6

    asked by Hannah
  381. chemistry

    Find the mass of sodium hydroxide needed to neutralize enough nitric acid to create 2.0 grams of sodium nitrate? How do I write out equation and solve?

    asked by Tosha
  382. math

    How do i do mixed numbers to improper fractions.

    asked by kelsey
  383. Physics

    A series of waves traveling at 200m/sec are being generated by a 100 Hz source. A point at the very top of the crest of a certain wave is _______ meters from a corresponding point 3 'crests' away. 0 1.5 2.7 4 6.0 12.0 16.0 30000

    asked by Kristina
  384. physics

    A .01kg bullet traveling at 800m/!@#$%^&s a disk with a radius of R=.1m at R/2 and leaves with a speed of 400m/s. what is the angular speed of the disk right after? (omega) I used conservation of momentum and the rotational inertia for a disk and found

    asked by Taylor
  385. Math

    What kind of graph is two circles put together called?

    asked by savannah
  386. sequence algebra

    find the n th term uf the sequence 3/2 6/4 9/5 12/6 15/7

    asked by dunstan
  387. math

    what is the answer 0.5 divide 0.55 and the top of the diveded was 11

    asked by izzy
  388. Physics

    A gas is taken though a single process in which its volume decreases by .25 m^3 as the temp of the gas rises 2deg C. Which of the following people are more likely to have reached the correct conclusion? a. Bob Identifies this process as adiabatic b. Jill

    asked by Joel
  389. chemistry

    Relative to pure water, what can you expect for the solubility of AgF in .10 M Hcl? Explain please....

    asked by Anonymous
  390. math

    Which of the following shows how the Distributive Property could be used to simplify 7(28)? F 7 • 2 • 8. G 7 • (20 • 8). 7 • (20 8). J (7 • 20) 8 ...

    asked by Anonymous
  391. Science (6th grade, but actual 7th grade paper)

    We are learning about potential and kinetic energy. There are two ramps. One is short and the other is long. The long one is labeled A, and the short one is labeled B. On which one would a marble go the farthest after touching the ground?

    asked by Needs Help
  392. Math

    Bob wants to buy cards with $20. Each card cost between $1.80 and $2.25. What is the maximum number of cards he can buy?

    asked by Bill
  393. geometry

    the measure of x is greater than four times the measure of a supplement to it. is this possible? if so, graph the possibilities for c on a number line. if not, explain why not.

    asked by Carly
  394. Math

    Let s and t be any two whole numbers, excluding 0. True or false. The statemnt s/t = t/s is always true? What did you do first to answer this question?

    asked by Jen
  395. math

    how to rewrite in symbols: the perimeter of a square p is 4 multiplied by the length of a side L

    asked by ursula
  396. math

    what type of math problems exemplify the different purposes of variable, and in what way do these different uses of variable can be confusing?

    asked by sandra
  397. math

    how to rewrite rule in symbols: At a certain time of day,the length of a shadow s cast by an object is twice the length of the object L

    asked by ursula
  398. math

    how to rewrite rule in symbols: At a certain time of day,the length of a shadow s cast by an object is twice the length of the object L each length h in a copy 1/100 the length k in the original

    asked by ursula
  399. math

    how to rewrite rule in symbols: At a certain time of day,the length of a shadow s cast by an object is twice the length of the object L each length h in a copy 1/100 the length k in the original

    asked by ursula
  400. Calculus

    Find all points on the graph of f(x)=xe^x at which the tangent line is parallel to the line y-3x=4. i figured out that f'(x)=3 but i don't know what to do with that.

    asked by Leanna
  401. Chemistry

    how does the outer energy level relate to the ionization energy?

    asked by Sandy
  402. language (gerunds)

    Marie's favorite event is swimming. swimming is the gerund and I think that it is used as either a DO or a predicate nominative. I'm leaning toward PN because it renames the event?

    asked by michael
  403. algebra

    what is the answer to this problem g+3/5=21

    asked by Jalaya
  404. geometry

    we are a team of students studying for a test - asking again - thanks - The distance between Sue and a dude ranch was 30 mi. straight accross a rattlsnake-infested canyon. Instead of crossing the canyon, she hiked due north for a long time and then hiked

    asked by antonne
  405. language (gerunds)

    Thank you to Ms. Sue and writeacher for all of your help, I GET IT!!!

    asked by michael
  406. physics

    Im confused! How would you calculate the work done by a plane? I know work= f d, i just don't know how to get the force and distance!

    asked by Maddi
  407. Physics

    A 10kg particle undergoes simple harmonic motion with an amplitude of 2.0mm, a maximum acceleration of 8.0x10^3 m/s^2, and an unknown phase constant (phi) What are: a.) the period of the motion b.) the maximum speed of the particle c.) total mechanical

    asked by Greg
  408. science 6 grade

    what special molecule contains the cell's genetic material

    asked by rebecca
  409. Biology

    What is the lumen of the human digestive system?

    asked by Emily
  410. Chemistry

    what is the outer energy level for beryllium?

    asked by Sandy
  411. geometry

    If the sides of a triangle are in the ratio 3:4:5 and the perimeter of the triangle is 72 inches what are the lengths of the sides?

    asked by Debbie
  412. criminal justice

    what are 2 major influencing factors and how dose federal sentencing guidelines have an effect on these influences

    asked by DJ
  413. HCA 220

    I have to have a draft for my power point that is due in couple hours. Can anyone help. It has to be storyboard presentation

    asked by Sharon
  414. math

    The game has 12 3min rounds. If the player stops after 2min in the twelfth round How many min did he play? I want to say it would be 35 but I know that they play 36 min so is it 34 or 35?

    asked by Anonymous
  415. 5th grade

    what are some features geographers can use to define a region?

    asked by lily
  416. Chemistry

    A 3.0 -L sample of a 5.8 M NaCl solution is diluted to 65 L. What is the molarity of the diluted solution?

    asked by Kelsey G
  417. Chemistry

    How much of a 6.0 M sucrose solution should be used to make 81.0 mL of a 0.055 M solution?

    asked by Kelsey G
  418. Pre Calc

    Simplify and show work step by step cos²θ + sin² = ???

    asked by Huh
  419. math

    compare -63 and -48

    asked by reeve
  420. geometry

    if arc BC is 42 degrees and angle 5 is 32 degrees what is the measure of arc DE?

    asked by jasmine
  421. 5th grade math

    Using the butterfly method, which fraction is less 1/4 or 1/3 - I know the answer but using the butterfly method the answer does not work out? Am I doing something improper? Thanks!

    asked by Diana
  422. math

    what were the headlines after a mad scientist trained two eggs to attack a candy store with sharp sticks

    asked by tia
  423. math

    George has enough fencing to enclose 2400 square feet around a circular pool. If he builds a circular fence and he wants 12 foot walkway around the pool, what is the largest pool diameter possible?

    asked by carmie
  424. Math

    Let s and t be any two whole numbers excluding 0. True or false. The statement s/t = t/s us always true? what did you do first to answer this question?

    asked by Jenni
  425. ethics

    The medical profession: how does that industry serves society and how we react to changes in that industry's standards and practices?

    asked by Anonymous
  426. childcare

    an appropriate science activity for an infant would be: a. weighing and measuring other infants. b. planting a flower. c.feeling different textured objects. d.caring for pets of the facility.

    asked by sara
  427. biology

    how would hydrogen ions and hydroxide ions be attracted to intact water molecules

    asked by haunnah
  428. algebra

    Having problems with the FOIL for the problem below (5x^8-5)(x^9-4). My answer is 5x^17-20x-5^9-20. please let me know if this is correct. if not correct can you show me what i need to do?

    asked by Donni
  429. 10th grade english

    what is a one sentence summation of plot

    asked by carla
  430. material science/ chemistry

    why are metals so apt to corrode while polymers are immune to corrosion?

    asked by jenny
  431. Algebra 1

    A(-1,30),B(4,15),C(14,39) Are the three points collinear?

    asked by Anonymous
  432. PHYSICS

    A 3kg mass is observed to accelerate 20m/s^2, 20 (degrees). Two forces act on the object. One force is 4.5N, 45 (degrees). Find the other force.

    asked by CHRISTIE
  433. ethics

    The medical profession: how does that industry serves society and how we react to changes in that industry's standards and practices?

    asked by Anonymous
  434. MATH

    Tina and her sister evenly split a $10 lottery winning. If tina promised to giver her brother 1/4 of her share what fraction of the original $10 did she give her brother?

    asked by Bill
  435. child care

    which of the following is an obstacle to learning for a begininning mover?

    asked by Shannon
  436. chemistry

    Your task is to produce 175mL of carbon dioxide. You many use anything in class.

    asked by Haley
  437. Chemistry-Emergency

    What is the molarity of a 15% solution of Ni3Fe(CN)6?

    asked by Beth
  438. math

    how to rewrite in symbols each length h in a copy 1/100 the length k in the original

    asked by ursula
  439. english

    how does dialogue help you move forward

    asked by branden
  440. child care

    the goal of thomas behavior appears to be

    asked by sara
  441. sewing

    What is a wood clap used for in sewing ? thank you

    asked by me
  442. Chemistry

    Calculate the concentration of the solution in mass percent: 32.3 mg KNO3 in 2.44g of H2O.

    asked by Kelsey G
  443. Chemistry

    Determine the amount of potassium chloride in each of the following solutions: 44mg of a solution containing 15% KCl by mass.

    asked by Kelsey G
  444. art

    HUYT RED ESDR EN ENGLISH PLEASE

    asked by OLIVE
  445. physics

    An EF 151 GTA sits on the EF stool and rotates CCW with an initial speed of 60 rpm. After 28 revolutions he stops. Assuming constant acceleration, how long was he rotating?

    asked by sandhu