Questions Asked on
November 4, 2010

  1. Physics

    3. A person exerts a force of 55 N on the end of a door 74 cm wide. What is the magnitude of the torque if the force is exerted a)perpendicular to the door b)at a 45 degree angle to the door, c) at a 125 degree angle to the door?

    asked by Bobby
  2. chemistry

    In the REDOX reaction in basic solution Zn-->Zn(OH)4+H2 I know that the first half reaction is 4H20+Zn-->Zn(OH)4 +4H+e but the second one is either 2e+2H2O--->H2+2OH (WHICH IS THE ANSWER GIVEN ON THE WORKSHEET) OR 2e+2H-->H2 I think both leads to the same

    asked by george
  3. Chemistry

    Hydrogen and methanol (CH3OH) have both been proposed as alternatives to hydrocarbon fuels. a) Write balanced chemical equations for the complete combustion of hydrogen and the complete combustion of gaseous methanol. Combustion reaction for hydrogen:

    asked by Jarrod
  4. Physics

    A dentist's drill starts from rest. After 3.20 s of constant angular acceleration it turns at a rate of 2.7 104 rev/min. (a) Find the drill's angular acceleration. (b) Determine the angle (in radians) through which the drill rotates during this period.

    asked by Sam
  5. AP Chemistry

    One way of separating oxygen isotopes is by gaseous diffusion of carbon monoxide. The gaseous diffusion process behaves like an effusion process. Calculate the relative rates of effusion of 12C16O, 12C17O, and 12C18O. Name some advantages and disadvantages

    asked by Anonymous
  6. Physics - Standing Waves

    a) A plot of lnv vs. lnT should be a straight line. Why? b) What is the slope of the straight line? c) What is the intercept of the straight line?

    asked by Jerome
  7. Chemistry

    How much heat, in kilojoules, is associated with the production of 273kg of slaked lime, Ca(OH)2? CaO(s)+H2O(l)-->Ca(OH)2(s) delta H=-65.2kJ

    asked by Lisa
  8. PHYSICS HELP

    The maximum lift force on a bat is proportional to the square of its flying speed v. For the hoary bat (Lasiurus cinereus), the magnitude of the lift force is given by FL (0.021 N·s2/m2)v2 The bat can fly in a horizontal circle by "banking" its wings at

    asked by Taylor
  9. college chemistry

    Balance the equation in aqueous acidic solution: C2O42-(aq) + MnO4-(aq) → Mn2+(aq) + CO2(g) please teach me how to do it!

    asked by sparkle
  10. chemistry

    what the balanved equation for gaseous sulfur dioxide reacts with water to form aq sulfurous acid (H2SO3)

    asked by nikki
  11. college chemistry

    The base dissociation equilibrium constant (Kb) for C5H5N is 1.40×10-9 (eq. 1). (eq. 1): C5H5N(aq) + H2O(l) = OH-(aq) + C5H5NH+(aq) Calculate the value of the equilibrium constant (Ka) for the hydrolysis of C5H5NH+ as shown in the reaction (eq. 2). (eq.

    asked by sparkle
  12. calculus

    A square-based, box-shaped shipping crate is designed to have a volume of 16ft^3. The material used to make the base costs twice as much (per ft^2) as the material in the sides, and the material used to make the top costs half as much (per ft^2) as the

    asked by Bob
  13. STOICHIOMETRY

    2Al + 3CuSO4 ! Al2(SO4)3 + 3Cu What is the maximum amount of Cu (63.5 g/mol) that could be produced by reacting 20.0 grams of Al (27.0 g/mol) with excess CuSO4?

    asked by MAGGIE
  14. College Chemistry

    Calculate the pH of a 0.5 M Formic Acid (HCOOH) soln. ka= 0.00018

    asked by Anonymous
  15. Chem

    What is the enthalpy for the following reaction? C2H4+H2O--->C2H5OH

    asked by Kay
  16. chem

    A 455-g chunk of iron is removed from an oven and plunged into 385g water in an insulated container. The temperature of the water increases from 27 degrees celsius to 89 degrees celsius. If the specific heat of iron is 0.449 J g^-1 degrees Celsius^-1, what

    asked by Rachel
  17. chemistry

    A lab technician determines the boiling point elevation of an aqueous solution of a nonvolatile, nonelectrolyte to be 1.95°C. What is the solution's molality?

    asked by MaryJ
  18. calculus

    A rectangle is constructed with its base on the diameter of a semicircle with radius 5 cm and with two vertices on the semicircle. What are the dimensions of the rectangle with maximum area?

    asked by Bob
  19. history

    Heather bought a ten-year maturity corporate bond when it was issued for $1,000. The bond has an annual interest rate of seven percent and pays interest semi-annually. How much does she receive every six months?

    asked by Ed
  20. Physics

    A 0.18 kg point mass moving on a frictionless horizontal surface is attached to a rubber band whose other end is fixed at point P. The rubber band exerts a force F = bx toward P, where x is the length of the rubber band and b is an unknown constant. The

    asked by Jessica
  21. Chem

    What is the enthalpy for the following reaction? overall: C2H4+H2O--->C2H5OH is -1411kJ correct??

    asked by Angel
  22. math

    The distance between goalpost, BC, is three times the distance from the top of the goalpost to the bottom. If the perimeter of ABCD is 21 1/3 yards, what is the length of BC

    asked by alex
  23. physics

    The drawing shows a type of flow meter that can be used to measure the speed of blood in situations when a blood vessel is sufficiently exposed (e.g., during surgery). Blood is conductive enough that it can be treated as a moving conductor. When it flows

    asked by tee
  24. physics

    The drawing shows a type of flow meter that can be used to measure the speed of blood in situations when a blood vessel is sufficiently exposed (e.g., during surgery). Blood is conductive enough that it can be treated as a moving conductor. When it flows

    asked by tee
  25. chemistry

    According to the Heisenberg uncertainty principle, if the uncertainty in the speed of an electron is 3.5 x 10(3) m/s, the uncertainty in its position is at least a)66 m b)17 m c)6.6 x 10-8 m d)1.7 x 10-8 m e)None of the above

    asked by lavonne
  26. trig

    3tan(3x) = sqrt(3) Solve the equation for exact solutions of the interval [0,2pi).

    asked by kyle
  27. Chemistry

    How much boiling water would you need in order to raise the bath to body temperature (about 37)? Assume that no heat is transferred to the surrounding environment. Imagine that your water heater has broken, but you want to take a bath. You fill your

    asked by Bella
  28. Chemistry(I'm sooo confused here!)

    The Rydberg equation, with n1=1, predicts an ultraviolet series of spectral lines of atomic hydrogen. Which of the following wavelengths is not predicted by the equation: 1/ = (1.097 x 10(7) m - 1) x (1/n1(2)-1/n2(2) a)182 nm b)103 nm c)97 nm d) 95 nm e)

    asked by lavonne
  29. math grade 11

    A quadratic function is defined by f(x)= 3x^2+4x-2. A linear function is defined by g(x)= mx-5. what values(s) of the slope of the line would make it a tangent to the parabola

    asked by priya
  30. chemistry

    how many moles of butane gas c4h10 react to produce 3.50moles of water?

    asked by tracey
  31. Physics

    A spherical 0.34 kg orange, 2.0 cm in radius, is dropped from the top of a building of height 31 m. After striking the pavement, the shape of the orange is a 0.60 cm thick pancake. Neglect air resistance and assume that the collision is completely

    asked by Tired
  32. chemistry

    How many milliliters of a 5.0 M H2SO4 stock solution would you need to prepare 125.0 mL of 0.19 M H2SO4?

    asked by MaryJ
  33. math

    washington school cost about $12,350,000 to build. use words to write that amount of money. 24. two factors of 16 are 1 and 16 beacuse 1*16= 16. find three more factors of 16.

    asked by jojo
  34. 8th grade

    Consider the equation 3x+5y=k, what values could k so that the x-intercept and y- intercept on the equations graph would both be integers. explain.

    asked by Monkeylover:)
  35. chemistry

    How many moles of solute are contained in a 150ml solution of a 0.25 M NaNO3 solution?

    asked by Ed
  36. Physics

    A rotating wheel requires 9.00 s to rotate 29.0 revolutions. Its angular velocity at the end of the 9.00 s interval is 98.0 rad/s. What is the constant angular acceleration of the wheel in radians/second squared? (Do not assume that the wheel starts at

    asked by Annie
  37. physics

    A small, 300 g cart is moving at 1.90 m/s on an air track when it collides with a larger, 2.00 g cart at rest. After the collision, the small cart recoils at 0.820 m/s. What is the speed of the large cart after the collision?

    asked by Danielle
  38. Physics-bobpursleyplease check

    This is the question I posted about two hours ago and I worked it out two ways-could you scroll down and check it, please?If I have a roller coaster, and hill 1 height is 50cm and hill height 2 is 25 cm and the PE is .9 as it approaches the top of hill 2,

    asked by Joey
  39. Physics

    The maximum lift force on a bat is proportional to the square of its flying speed v. For the hoary bat (Lasiurus cinereus), the magnitude of the lift force is given by FL (0.021 N·s2/m2)v2 The bat can fly in a horizontal circle by "banking" its wings at

    asked by Taylor
  40. Physical

    Tarzan, who has a mass of 85.0kg, is going to cross a gorge by swinging in an arc from a 4.0m long hanging vine. If his arms are capable of exerting a force of 1500N on the rope, what is the maximum speed he can tolerate at the tolerate at the lowest point

    asked by Sui
  41. IPC

    Element A and element B have bonded and formed compound AB. Which of the following statements is true? A) Compound AB has chemical and physical properties that are completely different from those of A and B. B) Compound AB has chemical and physical

    asked by Kaitlin
  42. AP Chemistry

    The molar mass of a volatile liquid (one which vaporizes easily) can be determined by a the DUMAS METHOD.' In this process a small amount of the liquid (a few drops) is placed in a clean flask. The mouth of the flask is covered with a piece of foil that

    asked by D
  43. PHYS

    A bungee jumper (m = 61.00 kg) tied to a 45.00 m cord, leaps off a 75.00 m tall bridge. He falls to 5.00 m above the water before the bungee cord pulls him back up. What is the magnitude of the impulse exerted on the bungee jumper as the cord stretches?

    asked by LEON
  44. physics

    A pulley rotating in the counterclockwise direction is attached to a mass suspended from a string. The mass causes the pulley's angular velocity to decrease with a constant angular acceleration α = -2.2 rad/s2. If the pulley's initial angular velocity is

    asked by aok
  45. physics

    a set of pulleys is used to lift a piano weighing 1,000 newtons. the piano is lifted 3 meters in 60 secounda. how much power is used?

    asked by safiyyah
  46. biology

    What happens to proteins dissolved in water when you heat it to 100 degrees celcius?

    asked by Anonymous
  47. Chemistry

    A solution contains an unknown mass of dissolved silver ions. When potassium chloride is added to the solution, a white precipitate forms. The precipitate is filtered and dried and then found to have a mass of 245 mg. What mass of silver was in the

    asked by Brittany
  48. Geometry

    A square graphed on the coordinate plane has a diagonal with endpoints E (2,3) and F (0,-3) what are the coordinates of the endpoints of the other diagonal?

    asked by alex
  49. Chemistry

    How much boiling water would you need in order to raise the bath to body temperature (about 37)? Assume that no heat is transferred to the surrounding environment. Imagine that your water heater has broken, but you want to take a bath. You fill your

    asked by Bella
  50. college Chemistry

    It requires 945.0 kJ/mol to break N2 molecules into atoms. Calculate the maximum wavelength of light that will still break these molecules apart. I tried converting the energy to kj and using E=hc/wavelength but that didn't give me the right answer...

    asked by alexis
  51. math

    The function D(h)=7e^-0.4(h) can be used to determine the milligrams D of a certain drug in a patient's bloodstream h hours after the drug has been given. How many milligrams will be present after 9 hours. Round three decimal places. so 7e^(-0.4 x 9) =

    asked by Hannah
  52. Physics

    A flat uniform circular disk (radius = 2.10 m, mass = 1.00 102 kg) is initially stationary. The disk is free to rotate in the horizontal plane about a frictionless axis perpendicular to the center of the disk. A 40.0-kg person, standing 1.00 m from the

    asked by Kevin
  53. chemistry

    Propane gas is used to heat a tank of water. If the tank contains 200 L of water, what mass of propane will be required to raise its temperature from 20 degrees C to 65 degrees C. The heat of combustion for propane is -2220 kJ/mol.

    asked by Ray
  54. Geomtry

    The scissor lift forms rhombus PQRS with PQ= (7b-5) meters and QR= (2b-0.5) meters. IF S is the midpoint of Line RT, what is the length of line RT

    asked by alex
  55. Physics

    A block of mass M resting on a 21.5° slope is shown. The block has coefficients of friction μs=0.605 and μk=0.344 with the surface. It is connected via a massless string over a massless, frictionless pulley to a hanging block of mass 2.57 kg. What is

    asked by Bella
  56. physics

    A spot of paint on a bicycle tire moves in a circular path of radius 0.27 m. When the spot has traveled a linear distance of 2.18 m, through what angle has the tire rotated? Give your answer in radians.

    asked by aok
  57. English

    He keeps himself in good health. (What is the part of speech of 'in good health'? An adjective phrase or an adverbial phrase? I think we can substitude 'healthy' for 'in good health'? Then, is 'in good health' an adjective phrase?)

    asked by rfvv
  58. Calculus

    P(x)= -x^3+15x^2-48x+450, x>/3 is an approximation to the total profit (in thousands of dollars) from the sale of x hundred thousand tires. find the number of hundred thousands of tires that must be sold to maximize profit.

    asked by Dan
  59. Emergancy help!!!!!!!!!

    Classify the model as exponential growth or exponential decay. Identify the growth or decay factor and the percent increase or decrease per time period. y=16(1.25)^t

    asked by Nikki
  60. Physics

    Water flows over a section of a waterfall at the rate of 4.9 104 kg/s and falls 36 m. How much power is generated by the falling water?

    asked by MRock
  61. physics

    A 1200 kg car is being driven up a 5:0 hill. The frictional force is directed opposite to the motion of the car and has a magnitude of f = 524 N. A force ~F is applied to the car by the road and propels the car forward. In addition to these two forces, two

    asked by Anonymous
  62. Math(Please check)

    Find the domain of the following rational function. R(x) = -3x^2 / x^2 + 2x - 48 (x+8)(x-6) So domain is x cannot be 8 or -6. Am I correct?

    asked by Hannah
  63. algebra

    A mountain drops 90 feet over a horizontal distance of 875 feet. What is the slope of the mountain? Round your answer to two decimal places.

    asked by franklin
  64. Chemistry

    When heated, N2O4 dissociates as follows: N2O4 =2NO2 A flask initially contians .560 M N2O4. at this temperature, Kc is 4.00. what is the equilibrium concentration of NO2?

    asked by Rob
  65. College Chemistry

    When 20.0 g C2H6 and 60.0 g O2 react to form CO2 and H2O, how many grams of water are formed?

    asked by Jake
  66. Physics-bobpursley please check

    This is the question I posted about two hours ago and I worked it out two ways-could you scroll down and check it, please?If I have a roller coaster, and hill 1 height is 50cm and hill height 2 is 25 cm and the PE is .9 as it approaches the top of hill 2,

    asked by Joey
  67. Physics ( elestic potential energy)

    A spring with a force of 5.2 N/m has a relaxed length of 2.45. When a mass is attached to the end of the spring and allowed to come to rest. the vertical length of the spring is 3.57m. Calculate the elastic potential energy stored in the spring.

    asked by Pablo
  68. English

    1. If it snows tomorrow, I'll not go hiking. 2. Because it snows tomorrow, I'll not go hiking. 3. Because it will snow tomorrow, I'll not go hiking. (Which one is correct of the two, #2 and #3?)

    asked by rfvv
  69. Chemistry

    A 455-g chunk of iron is removed from an oven and plunged into 385g water in an insulated container. The temperature of the water increases from 27 degrees celsius to 89 degrees celsius. If the specific heat of iron is 0.449 J g^-1 degrees Celsius^-1, what

    asked by Angel
  70. math

    a computer company can sell 1000 computers if they price them at $500. The number sold will increase by 10 for every 1$ decrease in the price. The company has fixed cost of $100,000, and each computer costs $300 to produce. Find the price that will

    asked by chris
  71. Science

    How much would a 75 kg man weigh due to the effect of gravity?

    asked by William
  72. Calculus

    Find the indicated absolute extremum as well as all values of x where it occurs on the specified domain f(x)= x^2e^-0.25x ; [3,10]

    asked by Dan
  73. Calculus

    a local office supply store has an annual demand for 50,000 cases of photocopier paper per year. it costs $2 per year to store a case of photocopier paper, and it costs $50 to place an order. Find the optimum number of cases of photocopier paper per order

    asked by Melissa
  74. computer science

    what is the cost(most expensive,expensive or less costly)performance(powerful, most powerful or average)reliability(highly reliable or less reliable) size(large, medium or small)and installed in numbers(few, many or large) of super compters, mainframe

    asked by tina
  75. math

    8. in the 2004 presidentail election, 4651 residents of the state of rhode island voted for candidate ralph nader. round that number of residents to the nearest thousand, to the nearest hundred, and to the nearest ten.

    asked by jojo
  76. physics

    A spot of paint on a bicycle tire moves in a circular path of radius 0.27 m. When the spot has traveled a linear distance of 2.18 m, through what angle has the tire rotated? Give your answer in radians.

    asked by aok
  77. chemistry

    What is the mole fraction of NaOH in an aqueous solution that contains 16.9% NaOH by mass?

    asked by MaryBeth
  78. geometry

    Two ships leave a harbor at the same time, traveling on courses that have an angle of 140 degrees between them. If the first ship travels at 26 miles per hour and the second ship travels at 34 miles per hour, how far apart are the two ships after 3 hours?

    asked by Rac
  79. Chem

    Part A : This is the first law of thermodynamics question. case 1 - the system expands and the surroundings get hotter case 2 - the system expands and the surroundgins get colder case 3 - the system contracts and the surroundings get hotter case 4 - the

    asked by AY
  80. college

    convert 2(NH4)3PO4+3HgSO4=3(NH4)2SO4+Hg3(PO4)2 into complete ionic equation,then net ionic equation

    asked by mike
  81. physics

    A solenoid has a cross-sectional area of 2.60 10-4 m2, consists of 600 turns per meter, and carries a current of 0.7 A. A 10 turn coil is wrapped tightly around the circumference of the solenoid. The ends of the coil are connected to a 0.8 resistor.

    asked by tee
  82. phy

    A scuba diver and her gear displace a volume of 71.0 L and have a total mass of 64.0 kg. (a) What is the buoyant force on the diver in sea water?

    asked by mas
  83. college

    I have 7 12 feet of rope and my friend has 3/10 of what we . need to make a jump rope hang up in our back yourd

    asked by math
  84. physics

    A weight lifter lits a 1250 pound barbell 2 meters in 3 seconds. How much power was used to lift the barbell

    asked by janice
  85. Hello

    why does fluorene elute first from the column

    asked by cairo
  86. math

    A square graphed on the coordinate plane has a diagonal with endpoints E (2,3) and F (0,-3) what are the coordinates of the endpoints of the other diagonal?

    asked by alex
  87. Physics

    Gravity on the surface of the moon is only 1 6 as strong as gravity on the Earth. What is the weight of a 33 kg object on the Earth? The acceleration of gravity is 10m/s2 . Answer in units of N.

    asked by RImon
  88. Chemistry*

    The following equation is given: S2O3 -2 + 2H +1 ---> S + SO2 + H2O [HCl] = 2 mol/L [Na2S2O3]= 0.3 mol/L what is the concentration (mol/L) of H+ if you were to add: a) 20 mL of HCL with 5 mL Na2S2O3 & with 5 mL H2O b) 15 mL of HCl with 5 mL Na2S2O3 & 10 mL

    asked by Stephanies
  89. Science

    Does my hypothesis match with my intro? I'm writing a lab report. Introduction: The intention of this lab is to find the pH of different household material. Boiled red cabbage juice will be used as the pH indicator. pH is the chemical potential of hydrogen

    asked by Elizabeth
  90. Chemistry

    Organic chemistry: an attempt at synthesizing a certain optically active compound resulted in a mixture of its enantiomers. The mixture had an observed specific rotation of 11.0 degrees. If it is known that the specific rotation of the R enantiomer is

    asked by Tokey
  91. Physics

    The clothesline is under tension when you hang from it. Why is the tension greater when the clothesline is strung horizontally than whe is hangs vertically?

    asked by Kelsea
  92. physics

    A solenoid has a cross-sectional area of 2.60 10-4 m2, consists of 600 turns per meter, and carries a current of 0.7 A. A 10 turn coil is wrapped tightly around the circumference of the solenoid. The ends of the coil are connected to a 0.8 resistor.

    asked by tee
  93. physics

    What is the magnitude of the apparent weight of a 79 astronaut 5200 from the center of the Earth's Moon in a space vehicle moving at constant velocity?

    asked by RJ
  94. physics

    A bucket of mass 2.20 kg is whirled in a vertical circle of radius 1.15 m. At the lowest point of its motion the tension in the rope supporting the bucket is 28.0 N. a) Find the speed of the bucket. b)How fast must the bucket move at the top of the circle

    asked by jess
  95. physics

    A UNIFORM RING OF MASS M AND RADIUS R IS ROLLING WITHOUT SLIPPING ON A HORIZONTAL SURFACE.FIND THE RADIUS OF CURVATURE OF TRAJECTORY TRACED OUT BY THE HIGHEST POINT?

    asked by Anonymous
  96. american History

    Can someone help me please. I am having a hard time answering this question. Do you think Great Britain was justified in imposing taxes on the colonies following the French and Indian War? Or do you believe the colonists had legitimate grievances regarding

    asked by Maria
  97. Physics(Checking answer)

    Sorry for the re-post but I really need to know this, but now I just want to know if the question is right. A spring with a force of 5.2 N/m has a relaxed length of 2.45. When a mass is attached to the end of the spring and allowed to come to rest. the

    asked by Pablo
  98. Math

    Classify the model as exponential growth or exponential decay. Identify the growht or decay factor and the percent increase or decrease per time period.

    asked by Nikki
  99. chemistry

    calculate the concentration of a silver ion when the solubility produc constant of AgI is 10 to the power of negative 16

    asked by kim
  100. Physics

    Two identical 19.8-kg spheres of radius 12 cm are 29.2 cm apart (center-to-center distance). (a) If they are released from rest and allowed to fall toward one another, what is their speed when they first make contact? (b) If the spheres are initially at

    asked by Oscar
  101. physics

    a modified U-tube: the right arm is shorter than the left arm. The open end of the right arm is height d = 10.0 cm above the laboratory bench. The radius throughout the tube is 1.60 cm. Water is gradually poured into the open end of the left arm until the

    asked by Ross
  102. phy

    An undersea research chamber is spherical with an external diameter of 5.80 m. The mass of the chamber, when occupied, is 68400 kg. It is anchored to the sea bottom by a cable. Calculate the following. (a) the buoyant force on the chamber N (b) the tension

    asked by mas
  103. Algebra

    How should two nonnegative numbers be chosen so that their sum is 1 and the sum of their squares is as large as possible? As small as possible?

    asked by Adolfo/Kristi
  104. chemistry

    At 900 degrees C, Kc for the reaction is 5.1. if .050 mole of H20 and .100 mole of Fe are placed in a 1L container at 900 degrees C, how many grams of Fe3O4 are present at equilibrium?

    asked by Donna
  105. journal entry

    On February 28th, the company adjusted for supplies used during the month, At February 28th, supplies on hand had a cost of $695.

    asked by Thara
  106. Math: Calculus

    Can someone help me out here with these two problem? I have know idea where to start. 1)The equation: 10(x-1)(x-2)(x-3)=1, has three real solutions a

    asked by REALLY NEED HELP!!!!
  107. Physics

    A roller-coaster vehicle has a mass of 506 kg when fully loaded with passengers (see figure). (a) If the vehicle has a speed of 22.0 m/s at point A, what is the force of the track on the vehicle at this point? (b) What is the maximum speed the vehicle can

    asked by Rose
  108. physics

    A solenoid has a cross-sectional area of 2.60 10-4 m2, consists of 600 turns per meter, and carries a current of 0.7 A. A 10 turn coil is wrapped tightly around the circumference of the solenoid. The ends of the coil are connected to a 0.8 resistor.

    asked by tee
  109. HELP! URGENT!

    What is the pH of a 0.030M solution of KF? Ka of HF is .2 x 10^-4. THNX!

    asked by John Parker
  110. college chemistry

    Balance the equation in aqueous basic solution: Fe(CN)64-(aq) + Ce4+(aq) → Ce3+(aq) + Fe3+(aq) + CO32-(aq) + NO3-(aq)

    asked by sparkle
  111. English

    Bring me the largest head of lettuce, please. I have to pick out the prepositional phrase and then identify its object. of lettuce (pp phrase) lettuce (it object)

    asked by Jim
  112. Calculus

    the demand for ground chuck(hamburger) in a certain region of the US is given by q= 3.41p^-0.22. is the demand for ground chuck elastic or inelastic

    asked by Melissa
  113. Science

    what is the acceleration of a boy on a skateboard if the unbalanced forward force on the boy is 15 N? The total mass of the boy and the skateboard in 58 kg

    asked by Fred
  114. math

    find p 160/p=21

    asked by Rivan
  115. organic chemistry lab

    chloroform is an excellent solvent for extraction caffeine from water. Kd = 10 for caffeine in chloroform- water at 25 Celsius. what weight of caffeine would be removed from a solution of 4g caffeine in 100ml water by a single extraction of 100 ml of

    asked by jayesh
  116. Physics

    a modified U-tube: the right arm is shorter than the left arm. The open end of the right arm is height d = 10.0 cm above the laboratory bench. The radius throughout the tube is 1.60 cm. Water is gradually poured into the open end of the left arm until the

    asked by Ross
  117. Math: Calculus

    Find the smallest positive value of which satisfies -- x=4.100cos(2.800x) Give the answer to four places of accuracy._________ Remember to calculate the trig functions in radian mode.

    asked by REALLY NEED HELP!!!!
  118. Discrete Math

    7.A group has 9 women and 7 men. d. Suppose 2 members of the group refuse to work together. How many subgroups of 5 can be chosen 8. In how many ways can 16 people be seated: a. In a row, if 4 of the 16 do not want to sit next to one another b. In a row,

    asked by Justin
  119. trig

    A plane climbs into the jet stream which is flowing at a rate of 80 miles per hour. It travels with the jet stream for 5 hours and then reduces its altitude, flying out of the jet stream for 4 more hours. The plane, while out of the jet stream, covered 550

    asked by Anonymous
  120. english

    "The author successfully translates her experience in Darfur into terrifyingly realistic scenes." authenticity?

    asked by danny
  121. math

    an equivalent fraction to the fraction -6/54 would be a) -12/60 b) -7/72 c) -5/45 d) -1/10 would the answer be c?

    asked by m
  122. chemistry

    When heated, CaCO3 decomposes as follows: CaCO3 (s) = CO2 (g) +CaO (s) in an experiment, 10.00 g of CaCO3 was placed in a .500 L container, and when it was heated to a constant temperature, 50% of the solid decomposed. What is the value of Kc for this

    asked by Rory
  123. English

    Can you help me check these sentences please? I still have some doubts. 1)I like playing sports in the real life but I have never played online games. 2)I have internet access at home (?). I find sports and game (?) websites interesting. 3)I have never

    asked by Franco
  124. science

    what is the solute and solvent in a solution made from 15 mL of oxygen and 5 mL of helium?

    asked by jan
  125. chemistry

    If 7.50 grams 1-butene reacts with 25.0 g oxygen how many grams of carbon dioxide will form? Which reactant is limiting? How many grams of excess reactant will be left at the end of the reaction?

    asked by rosa
  126. US History

    Why might it have been a mistake for Germany to have broken its pact and invaded the Soviet Union during World War II? Thanks -MC

    asked by mysterychicken
  127. physics

    A circular ring of wire of diameter 0.60 m carries a current of 35A. What acceleration will the magnetic force generated by this ring give to an electron that is passing through the center of the ring with a velocity of 1.2*10^6 m/s in the plane of the

    asked by steve
  128. physics

    In the cabin of a jetliner that cruises at 600 km/h, a pillow drops from an overhead rack into your lap below. Since the jetliner is moving so fastm why doesnt the pillow slam into the rear of the compartment when it drops? What is the horizontal speed of

    asked by Kelsea
  129. accounting-journal entry

    On February 28th, the company adjusted for supplies used during the month, At February 28th, supplies on hand had a cost of $695.

    asked by Thara
  130. physics

    A 1.7 kg otter starts from rest at the top of a muddy incline 85.3 cm long and slides down to the bottom in 0.40 s. What net external force acts on the otter along the incline?

    asked by Anonymous
  131. Calculus

    find the absolute extrema if they exist as well as where they occur f(x)= x-1/x^2+3x+5

    asked by Dan
  132. Calculus

    Given the demand function q=173-5p, determine the price where demand has unit elasticity.

    asked by Melissa
  133. 6th grade

    There are 3 parades on Cable Tv in the morning, 2 in the afternoon and 4 at night. How Many different combinations of parades can Ty watch?

    asked by Maddy
  134. Pharm Tech

    how many milliliters of a 5% stock solution are needed to prepare 250ml of a 2% solution?

    asked by Kelsey
  135. logarithmic differentiation

    How do you find the logarithmic differentiation of y = x^6x?

    asked by Christina
  136. math

    whrit for multiplication/division facts using the numbers 3, 8, and 24. 5.what are the seven months of the year that have 31 days? 6. find the eughth multiple of six. then add one. what is the square root of the answer? 8. in the 2004 presidentail

    asked by jojo
  137. Chemistry

    the initial pressure of phosgene gas (COCl2), was 1.31 atm. it was heated, and at equilibrium the pressure of CO was found to be .547 atm. what are the equilibrium pressures of Cl2 and COCl2? CO +Cl2=COCl2 i've done it twice and keep getting the wrong

    asked by Blair
  138. algebra 1

    f(x)=[2x-1] graph the function state the range and domain.

    asked by Sam
  139. math

    How do I write 2.59 as a percent?

    asked by liiy
  140. english

    Imagine you are on a local commission appointed to study the lack of proper recreation facilities for youth in your neighborhood. Decide what facilities should be recommended. Write an appropriate resolution to be presented to your county government.

    asked by jason
  141. Pre CAL!! Please HELP

    find the solutions of the equation that are in the interval [0,2pi) (a) sin2t+sint=0 (b)cost-sin2t=0

    asked by Hayli
  142. Physics

    A massless spring of constant k = 91.0 N/m is fixed on the left side of a level track. A block of mass m = 0.50 kg is pressed against the spring and compresses it a distance of d. The block (initially at rest) is then released and travels toward a circular

    asked by Erin
  143. Physics

    I THINK SOMEONE HAS THIS SAME QUETION! A massless spring of constant k = 91.0 N/m is fixed on the left side of a level track. A block of mass m = 0.50 kg is pressed against the spring and compresses it a distance of d. The block (initially at rest) is then

    asked by Gage
  144. Math

    I'm really struggling with how to set this up: A company has 18 members on its management team,10 men and 8 women. There is a conference in Hawaii, and the company decided to send 5 people. If the selection of five people is random, find the following

    asked by Samantha
  145. calculus

    solve (1/m)=(m-34)/2m^2

    asked by renee
  146. physics

    img145.imageshack.us/img145/7130/picture1n.png this is basically the diagram to my question A person of mass m = 62 kg is doing push-ups as shown in the attached figure. The distances are a = 91 cm and b = 60% of l1. Calculate the vertical component of the

    asked by anna
  147. Calculus

    Given the demand function q=173-5p, determine the price where demand has unit elasticity.

    asked by Melissa
  148. 10th grade

    how many moles of anhydrous MgSO4 are in 2.04grams of MgSO4

    asked by dasha
  149. Calc

    Find f'(7) for f(x)=6x^ln(x)

    asked by Adam
  150. Chemistry

    50 ml of 5 M H2SO4 react with excess BaCl2 to Make 40 g of BaSO4. a.) What is the theoretical yield of BaSO4? b.) What is the Percentage yield of BaSO4

    asked by Bert
  151. writing

    Write five sentences about the role of education in successful financial planning in the spaces on the following page. Correctly use a different verb tense in each sentence. Highlight each verb in yellow and identify the tense in parentheses.

    asked by duggyfresh
  152. 10th grade

    Two ships leave a harbor at the same time, traveling on courses that have an angle of 140 degrees between them. If the first ship travels at 26 miles per hour and the second ship travels at 34 miles per hour, how far apart are the two ships after 3 hours?

    asked by Rac
  153. physics

    a crate of mass m=100k is pushed at constant speed up a frictionless ramp of angel 30 by horizontal force .what are the magnitude of force

    asked by Anonymous
  154. college Chemistry

    It requires 945.0 kJ/mol to break N2 molecules into atoms. Calculate the maximum wavelength of light that will still break these molecules apart. I tried converting the energy to kj and using E=hc/wavelength but that didn't give me the right answer...

    asked by alexis
  155. chemistry

    express the barometric pressure in atm. 30.09Hg

    asked by thomas richards
  156. college chemistry

    Balance the equation in aqueous basic solution: ClO3-(aq) + Fe(OH)3(s) → FeO42-(aq) + Cl-(aq)

    asked by sparkle
  157. math

    1.Drew has fifty-six rolls. seven rolls will fit on one tray. how many trays does he need to carry all of the rolls? write an equation to solve the problem. 2. one gallon is about 3.78 L.about how many liters tow gallons? use words to write the answer. to

    asked by jojo
  158. social studies

    anyone know social studies?

    asked by hayhay
  159. Physics

    Suppose I apply a force to an initially motionless object. I push on the edge at an angle of 30 degrees. What is the torque on this object in terms of r and F?

    asked by ashley
  160. college accounting

    Jim’s Landscaping is in a business of maintaining and improving yards in the surrounding areas. The company bases its overhead cost budgets on the following data: Variable overhead costs: Supplies $4 per yard Machine maintenance $2 per yard Chemicals $6

    asked by Xan
  161. technology in the classroom

    what is one disadvantage of drill-and-practice programs?

    asked by carlo
  162. Physics

    2. A person exerts a perpendicular force of 75 N on a door. Calculate the torque on the door hinges if the force is applied a distance of 30 cm, 50 cm, and 75 cm from the hinge.

    asked by andrew
  163. college chemistry

    Which of the following terms would be in the product(s) for the correctly balanced equation if the equilibrium expression is: [CO2]2/[CO]2[O2] a. O2 b. 2 CO2 c. CO2 d. 2 CO

    asked by barbra
  164. Math

    Using the digit 2 and 1. Write a decimal less than 0.3

    asked by Sara
  165. Chemistry

    What is the chemical cause of the greens and red colors of aurora borealis (the northern lights)?

    asked by anonymous
  166. math

    5.15 as fraction or mixed number?

    asked by liiy
  167. calculus

    Find the limit of this calculus problem.? (5x-3)/(ln(5+4e^(x)) x=inf

    asked by Zel
  168. AP Calculus BC

    Use a graphing calculator to find how many widgets to make in order to maximize profit. The price (p) of one widget is given as a funtion of the number sold (n) as p=20e^[(-n^2)/40000]and the total cost (c) to make n widgets is given by C = 2n^2 + 2000/( n

    asked by Michael
  169. math

    fran made a rectangle with 36 square tiles.the sum of the length and width is 15.what are the length and width of her rectangle?

    asked by carol
  170. Chemistry

    I had a problem that asked what volume of water in gallons would need to be split to store the same amount of energy as found in 10.0 gallons of gasoline? I got an answer of 10.06 gallons of water. Just by looking at it, does this sound like it could be

    asked by Morgan
  171. Earth Science

    What are the effects radiation has on the heating of land and water? Thank You.

    asked by Anon
  172. Math: Calculus

    The equation: 10(x-1)(x-2)(x-3)=1, has three real solutions a

    asked by REALLY NEED HELP!!!!
  173. 2nd grade

    jose worked for 13 minutes weeding the garden. when he has worked 20 minutes he will get a dollar, how many more minutes does he need to work to get the dollar?

    asked by Anonymous
  174. ALGEBRA

    I also have an answer for this one. Just need to be sure. Says to solve then graph. x +9>2; x + 9 - 9> 2 - 9 x > - 7. I believe this means anything to the right of -7 could be a solution. I would graph this with an open circle at -7 and shade to the right

    asked by Jessica 2
  175. math

    Let f be he real-valued function defined by f(x)=sin^3x+sin^3|x| (a) find f'(x) for x>0 (b) find f'(x) for x

    asked by Mariam
  176. psycology

    Discuss how the visual system resolves ambiguities by making different types of assumptions and describe these assumptions.

    asked by Anonymous
  177. Thara

    i. On February 27th, the company sold goods on account to CUSTOMER, $1,800. The goods had a cost of $900. Dungy uses a perpetual inventory system. ans--> A/R (debit) $1800 Sales (credit) $1800 Cost of Goods Sold (debit) $900 Merchandise Inventory (credit)

    asked by accounting
  178. math

    10. $10.00-$5.46 11. 36,024 - 15,539 12. 43,675 + 52,059 19. 3.75 + 2.5 + 04 20. 42.25-7.5

    asked by jojo
  179. math

    25. is 16 a prime number? why or why not? 27. which of these numbers is a factor of 12? A 0 B 6 C 8 D 24

    asked by jojo
  180. Literature

    Please summerize and help me to understand M.H.Abrams-Structure and Style in the Greater Romantic Lyric? mail me please,thank you for your concern.

    asked by sharif
  181. history

    How does a command economy affect a worker's life?

    asked by Jon
  182. chemistry

    in an element on the periodic table, which number tells you the how many electrons are in that element??

    asked by Jane
  183. math

    John who is an amateur golfer spends 3 hrs a day practicing golf. What percentage of his waking hours does John spend practing golf if he sleeps 9 hours a day. PLEASE SHOW WORK.

    asked by paully
  184. Econ

    Explain how an economist could use the slope of the yield curve to analyze the probability that a recession will occur and why the spread may matter.

    asked by Sasha
  185. VB Programming

    Haw to create a web application for a vb auto center project from chapter 4.

    asked by Geri
  186. Physics

    A roller-coaster vehicle has a mass of 506 kg when fully loaded with passengers (see figure). (a) If the vehicle has a speed of 22.0 m/s at point A, what is the force of the track on the vehicle at this point? (b) What is the maximum speed the vehicle can

    asked by Rose
  187. chemistry

    If you have 137.8 mL of a 38.4% aqueous solution of ethanol, what volumes of ethanol and water are in the solution?

    asked by MaryBeth
  188. chemistry

    What volume of a 3.70 M KI stock solution would you use to make 0.400 L of a 1.25 M KI solution?

    asked by MaryBeth
  189. Algebra

    The area of a rectangular athletic field is represented by the expression 48x^4 + 32x^3 - 72x square meters. Write an algebraic expression to represent one possible set of dimensions (in the sense Òlength times widthÓ) of the athletic field. Include

    asked by Jordyn
  190. Physics

    Gravity on the surface of the moon is only 1 as strong as gravity on the Earth. 6 What is the weight of a 30 kg object on the Earth? The acceleration of gravity is 10 m/s2 . Answer in units of N.

    asked by Dede
  191. science

    an air sample contains 0.046% CO2 if the total pressure is 760mmHg what is the partial pressure of CO2

    asked by diana
  192. math algebra

    how would i do this problem elina and teresa raced on their bikes to the library after school. they both left at 3:00 pm and bicycled along the same trail elina rode at the speed of 12 miles an hour and teresa rode at the speed of 9 mph. elina got there

    asked by bob
  193. english

    it is not unusual for writers to confuse advers and adjectives how did the material in my writinglab help reduce the possibility of confusion describe the strategies you have developed to avaoid confusing the use of adverbs and adjectives in the future

    asked by shelia
  194. English

    It "accepted" the bride into the family. Is accepted an action verb physical or mental? It is referring to a letter

    asked by Mary
  195. 11th Grade AP English

    i have to wright an essay tomorro comparing The Great Gatsby and The Color of Water. Can anyone help me get some ideas/topics on what i should wright about?

    asked by Davud
  196. math 111 urgent please help

    Find a degree 6 polynomial with - 8 as a root, no other roots, and in which the coefficient of x^6 is 16. Assume that all (non-constant) factors of the polynomial correspond to real zeroes.

    asked by Eileen
  197. Earth Science

    What are the primary heat absorbing gases in the atmosphere? What wavelength of radiation do they absorb?

    asked by Anon
  198. chemistry

    One way that safety enters into specifications is to specify the composition of a vapor in air that could burn if ignited. If the range of concentration of benzene in air in which ignition could take place is 1.4 to 8.0 percent, what would be the

    asked by Jack
  199. ap calculus

    A particle moves along a straight line with displacement s(t), velocity v(t), and acceleration a(t). Show that a(t) = v(t) dv/ds.

    asked by alyssa
  200. logarithmic differentiation

    How do you find the logarithmic differentiation of y = x^-cos x ?

    asked by Ashley
  201. grammar

    What are the nouns in this sentence? 1. Every section of the United States has scenes of natual beauty. 2. Southern coastal cities are proud of their sandy beaches. 3. The citizens of every state take pride in ther charm of their won state.

    asked by alex
  202. Music Theory

    Explain to me how to get information on the computer about higher pair notes

    asked by Toni
  203. PHYSICS

    If you hold a coin above your head while in a bus that is not moving, the coin will land at your feet when you drop it. Where will it land if the bus is moving in a straight line at a constand speed? Explain.

    asked by Kelsea
  204. chem 106 xtra credit!!**

    what is EDTA and why is it added to salad dressings and many other processed food stuffs?

    asked by sammy jo
  205. science

    which of the following biomes would receive the most yearly rain? A desert B rainforest C grassland D coniferous forest

    asked by chidera
  206. algebra

    can you tell me the process of how to simply problems like this so i don't have to keep asking? simplify: (2x^2y)(-5x^-5y^6) (5y)^3

    asked by mike
  207. MAT 115

    Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in a 24-hour period. Julio samples about 120 bottles an hour and rejects the line if he finds more than 1/50 of the sample to be

    asked by G
  208. Physics

    A 3 kg ball is dropped from the top of a cliff. At the same time, a 9 kg ball is fired straight down from the top of the cliff. Ignoring air resistance, what can we say about their accelerations after being released?

    asked by Zaphod
  209. Physics

    There is a vertical tension at the top of a 4 m long ladder holding it at an incline. The bottom of the ladder is touching the floor, which exerts a normal force. You are standing 1 meter from the top of the ladder. What happens to the tension as you walk

    asked by Gunther
  210. english

    Plot is closely related to _____. authenticity?

    asked by danny
  211. ela

    i have to draw globe thetre but i have no idea how to draw. they give me some describsion:the stage was 4-5 feet high,surrounded by railing,. the celing above the stage, supported by two colums,was painted with the sun,moon,stars and zodiac sign and more

    asked by anu
  212. algebra

    x/14+12=3x-8.5

    asked by Dylan
  213. algebra

    x/14+12=3x-8.5

    asked by Dylan
  214. Math

    The following function f is one-to-one; find its domain and range. f(x) = 5 / x+3 Domain = x cannot be -3 Range= I do not know how to find this.

    asked by Hannah
  215. math

    Stephen said that the ratio of his mortgage to the sales price of his house is 7 to 6. Is this reasonable? Explain your answer. I said yes it is reasonable. Stephen would pay 7 dollars for every 6 he borrowed. We don't know the sales price or how long the

    asked by m
  216. college chemistry

    Which of the following statements is not true when a human is subjected to cold temperatures? Answer a.blood vessels dialate to help dissipate heat b.shivering causes the muscles to generate more heat c.blood vessels in the extremities constrict to reduce

    asked by barbra
  217. chemistry

    If you have 137.8 mL of a 38.4% aqueous solution of ethanol, what volumes of ethanol and water are in the solution?

    asked by MaryB
  218. fractions word problems fifth gradee

    I have fraction word problem made from a recipe. If it takes 2 1/2 cups of oatmeal to make 30 cookies. How much oatmeal will it take to make 120 cookies?

    asked by jermall
  219. Calculus

    Find all extrema, inflection points, and asymptotes where applicable f(x)= 2x^3-12x^2+18x I got 0, 8 for extrema 2, 0 for I.P and I don't know how to find asymptotes

    asked by Dan
  220. Geometry

    MNPQ is a rhombus. The measure of angle MRQ is (13t-1) degrees, and the measure of angle PQR is (7t+4) degrees. what is the measure of angle PQM?

    asked by alex
  221. social studies

    I need a web- cite for a essay on the history and how Pioneer wooden toys are made.I've looked but can't find a cite on how they are made.

    asked by Tony
  222. Math

    Using the digit 9 and 1. Write a fraction less than 1/10

    asked by Sara
  223. algebra 1

    help me please What is the smallest solution to the inequality 4 (x -1) > 16?

    asked by jazz
  224. probability

    A new test for detecting a disease has been developed. Medical trials show that 92% o patients with the disease show a positive test result. If 4% of the population have the disease, determine the probability (to 3 decimal places) that: a.) a radnomly

    asked by jj reddick
  225. math

    The scissor lift forms rhombus PQRS with PQ= (7b-5) meters and QR= (2b-0.5) meters. IF S is the midpoint of Line RT, what is the length of line RT

    asked by alex
  226. math

    MNPQ is a rhombus. The measure of angle MRQ is (13t-1) degrees, and the measure of angle PQR is (7t+4) degrees. what is the measure of angle PQM?

    asked by alex
  227. math

    The distance from B to D is approximately (x+10) feet, and the distance from A to C is approcimately (2x-5.3) feet. what is the approximate distance from A to C?

    asked by alex
  228. Math

    How do you change a fraction into a decimal besides the way of dividing the numerator by the denominator?

    asked by Sam
  229. physics

    An object is moving to the right at a speed of 4 m/s. Four forces(10N North, 10N South, 20N Left, 20N Right) are applied to the object at the same time. What will be the object's speed in m/s after the forces are applied?

    asked by Lelette
  230. Discrete Math

    7.A group has 9 women and 7 men. d. Suppose 2 members of the group refuse to work together. How many subgroups of 5 can be chosen 8. In how many ways can 16 people be seated: a. In a row, if 4 of the 16 do not want to sit next to one another b. In a row,

    asked by Justin
  231. science

    Evolucion and origen de la vida

    asked by Laura
  232. Math

    How do I write the Symmetric Equation of a line given the following parametric equations: (where t is a scalar) x=0t y=0t z=1+1t I know normally I would solve each equation for t and set the equations equal to one another. However, I can not solve for t in

    asked by Dwight
  233. math

    the width of the field is 3/4 the length and the radius of the center circle is 1/10 the width.what are the dimensions of the soccer field,given the perimeter is 420m?

    asked by luzagrace
  234. physics

    i have two kinetic energies and my homework asks for the ratio, K2/K1 Do i just divide them?

    asked by quick question
  235. Physics

    A string is under a tension of 700.0 N. A 1.5 m length of the string has a mass of 4.5 grams. What is the speed of a transverse wave of wavelength 0.50 m in this string? What is the frequency of the wave?

    asked by Jerome
  236. Pre CAL!! Please HELP

    find the solutions of the equation that are in the interval [0,2pi) (a) sin2t+sint=0 (b)cost-sin2t=0

    asked by Hayli
  237. chemistry

    Answers for copper has a density of 8.92g/cm3 and nickel has a density of 8.90 . which one is denser

    asked by Anonymous
  238. physics

    An object is moving to the right at a speed of 4 m/s. Four forces(10N North, 10N South, 20N Left, 20N Right) are applied to the object at the same time. What will be the object's speed in m/s after the forces are applied?

    asked by Lelette
  239. Math

    ý22xn is between 80 and 85 what is n?

    asked by Alex
  240. chemistry

    What volume of a 3.70 M KI stock solution would you use to make 0.400 L of a 1.25 M KI solution?

    asked by MaryBeth
  241. chemistry

    A lab technician determines the boiling point elevation of an aqueous solution of a nonvolatile, nonelectrolyte to be 1.95°C. What is the solution's molality?

    asked by MaryBeth
  242. algebra 1

    heip me I tried everything 4(x -1) > 16

    asked by jazz
  243. chemistry

    How do u solve this calculate the mass of (NH4)2SO4 if 16 g H is used

    asked by Anonymous
  244. Algebra, finding the intercept, help?

    How do you find the x and y intercept of 3x+0.5y=6? I know you set x and y to 0.. and then divide by the other variable's number. I think? Could somebody explain how to find the intercepts of this problem? Thank you -Allyson

    asked by Allyson
  245. Calc

    Find the f'(3) of F(x)=9(sin(x))^x

    asked by Adam
  246. math

    3x + 4 = 5x - 7

    asked by ed
  247. derivative

    How do you find the derivative of F(x) = root5(3 + 5 x + x^3)?

    asked by Anoymous
  248. logarithmic differentiation

    How do you find the logarithmic differentiation of y = x-cos x ?

    asked by Christina
  249. calculus

    (10/((n^2)-1)+((2n-5)/(n-1))=(2n+5)/(n+1)

    asked by renee
  250. math

    John who is an amateur golfer spends 3 hrs a day practicing golf. What percentage of his waking hours does John spend practing golf if he sleeps 9 hours a day. PLEASE SHOW WORK.

    asked by paully
  251. Language

    we are reading a book called the children of wilesden lane and i don't have the book so i don't know what "the last paragraph of chapter three" is PLEASE HELP!!!!

    asked by Maddie
  252. grammar

    need help editing and grammar for this journal Journal # 4 David Renaldo Monday, November 1st 2013 These past few weeks have been chaotic for me. I started to believe that my parents were starting to give me the independence which I think I deserve. Now I

    asked by hasyr
  253. Chemistry

    I need to determine the "percentage composition unknown" whatever that is. My current data: a) mass of test tube and foil cover: 7.5323 g b)temp of water bath: 375.65 K c) mass of test tube and foil and gas as sample: 7.5423 g d) barometric pressure:

    asked by Selina
  254. Math(Please check)

    Find the domain of the following rational function. R(x) = -3x^2 / x^2 + 2x - 48 (x+8)(x-6) So the domain is x cannot be 8 or -6. Am I correct?

    asked by Hannah
  255. US History

    25. The views of President Hoover and President Roosevelt on the best ways to solve the problems of the depression. Describe some actions they took to back up these views. (The first part of the question doesn't make sense to me, but that's how it's

    asked by mysterychicken
  256. chemistry

    Which term in the following reaction would not be included in the equilibrium expression? 2 Na3PO4 (aq) + 3 MgCl2 (aq) → 2 Mg3(PO4)2 (s) + 6 NaCl (aq)

    asked by barbra
  257. math

    A 6 pack of 4oz. containers of yogurt costs $2.99. What is the unit price in cents per ounce? Round to the nearest hundredth of a cent. I multiplied 6x4=24 then did 2.99/24=.1245833 then since needed to round to the nearest hundredth of a cent I came up

    asked by m
  258. Information Technology Infrastructure.

    Identify at least three difficulties that a DBMS overcomes for the business enterprise. Name two additional problems that are caused by relational DBMS technology. Justify your choices.

    asked by Shawnda
  259. Chemistry

    7.72 g of CuBr2 contains how many bromide (Br-) ions?

    asked by Jamie
  260. English

    1. Cows provide us with milk. 2. Cows provide milk to us. (Ae both the same?) 3. A cow can make about 12 kilograms of waste in a day. 4. A cow can make about 12 kilograms of waste within a day. (What is the difference between #3 and #4? The use of 'in' and

    asked by rfvv
  261. physics

    What gravitational force do the two protons in the helium nucleus exert on each other? Their separation is approximately 1.0 {\rm fm}.

    asked by jack
  262. Math

    Using only the digit 5 and 1. Write a fraction greater than 1/3

    asked by Sara
  263. physics

    A yo-yo of radius 10 cm and mass 1 kg is dropped from rest. What is the instantaneous torque on the yo-yo if I hold the string with my fingers?

    asked by lacey
  264. Physics

    A spaceship is launched from the Earth's surface with a speed v. The radius of the Earth is R. What will its speed be when it is very far from the Earth? (Use any variable or symbol stated above along with the following as necessary: G for the

    asked by Oscar
  265. Math

    Using the digit 9 and 1. Write a fraction greather than 1/3

    asked by Sara
  266. math

    Using the digit 2 and 1. Write a fraction greater than 1/3

    asked by Sara
  267. Geometry

    The distance from B to D is approximately (x+10) feet, and the distance from A to C is approcimately (2x-5.3) feet. what is the approximate distance from A to C?

    asked by alex
  268. Social Studies

    Which colonies had the most events??? n(Interesting to write About)

    asked by S.
  269. Math

    Using the digit 5 and 1. Write a decimal less than 0.3

    asked by Sara
  270. math

    100(20*40)

    asked by mm
  271. Math

    Using the digit 9 and 1. Write a decimal less than 0.3

    asked by Sara
  272. science

    what is the magnitude of the excealaration that is produced when the bracks of a 2.4 times 10 to the 3 power Kg car apply to a 3.2 times to to the power of 3 N force to stop the car..?

    asked by larry
  273. physics-acoustics

    1.A wall between two rooms is 20 x 9 ft. The wall construction has Transmission Loss 50 dB at 1000 Hz. In the wall is a small window of size 4 x 2 ft. The window has a tested Transmission Loss of 20 dB at the same frequency. The receiving room has 200 ft^2

    asked by sandhu
  274. Math

    Using the digit 5 and 1. Write a fraction less than 1/10

    asked by Sara
  275. Social Studies

    Which New England colonies had the most "exciting" events

    asked by S.
  276. Math

    Using the digits 2 and 1. Write a fraction less than 1/10

    asked by Sara
  277. math

    Your friend is tossing a coin. He says that heads and tails are equally likey outcomes, so the probability of getting heads is 50/50. Explain your friends error.

    asked by Anonymous
  278. math

    Correct or not correct? 1.) 4.4% = 0.044 2.) 6.3% = 0.063 3.) 79.7% = 0.797 4.) 0.03% = 0.003

    asked by liiy
  279. math

    change ratio to lowest terms.

    asked by timmy
  280. math

    what is the best parking space/shortest that would take the from store 1 to store 2 and back to the car?use the following information: -the distance between store 1 to store 2 is 25 yds wide. -driveway between the sidewalk and parking lot is 10 yds this

    asked by help
  281. Social St

    What were the land like in the colonial time of Newyork and what kind of Indians Already lived there??/

    asked by S.
  282. Sociology-

    I do not understand the reading"what happened to the American Social Compact?" of Robert Reich although I have read it many many times. Could you please explain it in main ideas? please help me.

    asked by Eneida
  283. marketing research

    is a random sample of 500 students large enough to represent all of the full time college students in the united states?

    asked by jack
  284. probability

    Mr. Spark has problems starting his two cars during the winter. He decided to record the number of times each car starts during a 30-day period. He recorded the following information. His Hyundai started 18 times. His Subaru started 20 times. Both cars

    asked by jj reddick
  285. Math

    make F the subject: e=3-f/1+2f

    asked by Astri
  286. English

    Ms. Jefferson will not be back in school until she is (well). When I sat down on the couch, my sister moved (over). Did you (test) the batteries before you installed them? I have to tell if the word in () is a verb, adjective, adverb, preposition, or

    asked by Jim
  287. Math

    If √ax²-b=c and a=2, b=7, and e=5, find X

    asked by Astri
  288. algebra

    Solve this equation 3(a+2)+5=2a+4

    asked by Marie
  289. econ312

    Are you in favor of the President Obama's public health care plan?

    asked by larry
  290. government

    What is a document that sets up the broad organization of a government and the rules under which it operate?

    asked by dede
  291. physics

    2.0g bullet fired with speed of 44.5m/s what is the kinetic? is there any conversions involved?

    asked by Help!!!!
  292. health

    The patient, 78-year-old female with NIDDM, is seen in the physician’s office today for evaluation of a left heel wound. After evaluation, the physician diagnosed the patient with diabetic foot ulcer due to peripheral vascular disease. The physician

    asked by liu
  293. Social Civics

    Today a worker's right strike A. cannot be limited in any way B. is not legally reconized under any circumstance C. can be limited by injunction under certain circumstances D. none of these

    asked by Mallory
  294. Englis just one line

    please corret this line. But in fact their actions and words worth nothing; it is their wealth which hides all their weakness.

    asked by sham
  295. statistics

    for a sample of n = 36, find the probability of a sample mean being less than 12.2 if u = 12 and o = 0.95

    asked by caintgetrite
  296. science

    Consider the populationsituation in Germany; very low birth rates, an aging population, and eventual decline in overall numbers.

    asked by candiace
  297. modern world studies

    how did china and japans decisions to respond to the west affect its foreign and domestic affairs?

    asked by susie
  298. International Business pratice

    What drive business internationally?

    asked by mamadou
  299. science

    What policies would you recommend to these countries, assuming their desire to achieve a sustainable society

    asked by candiace
  300. math

    21.a. which of these number is a multiple of 10? A 35 B 40 C 45 D 101 b. how can you fine the answer for part a just by looking? 22.a. A dime is what fraction of a dollar? b. A dime is what percent of a dollar? 23. washington school cost about $12,350,000

    asked by jojo
  301. spanish

    How does this sound as a restaurant review? Mi familia comimos en ese restaurante ayer. En ese restaurante Modern Apizza siempre serve pizza. Se hacen con al horno de ladrillo. Pides pizza, bebidas, ensaladas, y el pan. Pedimos ensalada de antipasto

    asked by Lily
  302. math pleaseee help!!!!!!!!!!!!

    what is the best parking space/shortest that would take the from store 1 to store 2 and back to the car?use the following information: -the distance between store 1 to store 2 is 25 yds wide. -driveway between the sidewalk and parking lot is 10 yds this

    asked by me
  303. science

    what is the structure formula for the acrylate ion?

    asked by karen
  304. PRE CALC PLEASE HELP!!!!!!!!

    find the solutions of the equation that are in the interval [0,2pi) 2-cos^2x=4sin^2(1/2x)

    asked by Hayli
  305. Algebra

    Hi. I have an answer for this and just need to confirm it. 2x+5(less than or equal to sign here)x + 6. I minused the x's on both sides of the greater then equal to sign; x +5 (greater then or equal to sign) = 6; x +5-5 (the sign here) 6-5 gives me x

    asked by Jessica
  306. math

    for a sample of n = 75, find the probaBILITY OF A SAMPLE MEAN BEING BEIGN GREATER THAN 221 IF U = 220 AND O = 3.9

    asked by caintgetrite
  307. Algebra1

    Predict the weight of a man that is 84 inches tall.

    asked by Sam
  308. MATH

    THE MEAN PRICE OF DIGITAL CAMERAS AT AN ELECTRONIS STOR IS $224, WITH A STANDARD DEVIATION OF $8. RANDOM SAMPLES OF SIZE 36 ARE DRAWN FROM THIS POPULATION AND THE MEAN OF EACH SAMPLE IS DETERMINED.

    asked by caintgetrite
  309. algebra1

    Write the slope intercept form for a line of fit.

    asked by Sam
  310. French

    Can you check these thanks. Le métro Directions: Completez 1. Il y a dix tickets de métr dans un ----------. Answer: carnet 2. On peut acheter des tickets au ----------- ou au -------------. Answer 1: guichet Answer 2: distribueur automatique 3. Les

    asked by Rachel
  311. science

    what is the walker circulation of normal & El Nino? help me please

    asked by majenta
  312. Algebra

    ..Help me with these problems.. x/4=2x+3/15 21/y-8=3 11u/6=u+14

    asked by Kayla
  313. American Government

    Is this statement true: The Secretary of Defense could never become President.

    asked by Andrew
  314. math

    2/9 as percent would I dived 9 into 2? Which would become .2 repeating right? Then what???

    asked by liiy
  315. agricultural science

    how to prepare accommodation for a mother and young cattle?

    asked by Mary
  316. agricultural science

    how to prepare accommodation for a mother snd young poultry

    asked by Mary
  317. physics

    Calculate the acceleration due to the rotation of the Earth of a person in a location 48° northern geographical latitude. Use REarth = 3,678 km for the value of the radius of the Earth.

    asked by sam
  318. art/101

    need an example of appendix a

    asked by dana
  319. Science

    When learning about types of energy what are the types of energy for: A. a lit match, yo-yo, bicycle, trampoline, apple, lightbulb, cooker, moving bullet, nuclear bob, hairdryer, solar panel,campfire, car, human, tv, mobile phone, thanks

    asked by Sue
  320. social studies

    why did Fred Riggs revisit his theory of prismatic society?

    asked by theresa
  321. college

    If 75 grams of ice at 0 degrees celsius were added to 1.5 Liters of water at 75 degrees celsius, what would be the final temperature?

    asked by Anonymous
  322. Math - determinants

    | x 5 2 | |-6 4 1 | = x(squared) + 22x - 1 | 3 1 x | Solve for x.

    asked by Kye
  323. science

    what is the walker circulation of normal & El nino conditions? help me

    asked by majenta
  324. Grammar

    Which is the correct answer? ------- your parents come from El Salvador? a.Are b.Do c.Does

    asked by Patty
  325. history

    aren't sustainable and renewable kind of the same thing?

    asked by JonG
  326. math

    write for multiplication/division facts using the numbers 3, 8, and 24. 5.what are the seven months of the year that have 31 days? 6. find the eughth multiple of six. then add one. what is the square root of the answer?

    asked by jojo
  327. English

    Can you please tell me if I made any mistakes in the following sentences? Thank you very much for your help. Thank you for your corrections. Can you please check the grammar in the following letter, please? 1) Do you think you can help me find a school in

    asked by Franco
  328. Education

    what is the difference between terminating a teacher and nonrenewing a teacher's contract

    asked by Natalie
  329. math

    21.a. which of these number is a multiple of 10? A 35 B 40 C 45 D 101 b. how can you fine the answer for part a just by looking? 22.a. A dime is what fraction of a dollar? b. A dime is what percent of a dollar

    asked by jojo
  330. Psychology

    Why do you believe that researchers would want to see if there isa correlation rather than just fully testing ech variable?

    asked by Andrea
  331. english

    In Pamela, or Virtue Rewarded, which some consider to be the first English novel, Pamela's master attempts to seduce her. How does the story end?

    asked by danny
  332. ALgebra

    a swim club requires a $120 membership, plus $4 each swim. How much would a person pay to swim 35 times?

    asked by mike
  333. Math

    81 is 56% of what?

    asked by Khalil
  334. Pearson

    Calculate the acceleration due to the rotation of the Earth of a person in a location 22° northern geographical latitude. Use R Earth = 3,680 km for the value of the radius of the Earth.

    asked by Crystal
  335. math

    0.70 as a percent?

    asked by liiy
  336. US History

    How did Britain's location help that nation to avoid a German invasion during World War II? Thanks -MC

    asked by mysterychicken
  337. English: Vocab

    Unctuous - full of unction; especially : revealing or marked by a smug, ingratiating, and false earnestness or spirituality I don't understand this. Unction means : use of oil or ointment Could someone explain this in simpler words.

    asked by Amy
  338. Finance

    Johnson Alarm Systems had 800,000 of retained earnings on December 31, 2008. the company paid common dividends of 60,000 in 2008 and had retained earnings of 640,000 on December 31, 2007. how much did Johnson earn during 2008, and what would earnings per

    asked by Anonymous
  339. calculus

    Find all critical numbers: (x^2+12)(9-x^2)?

    asked by Denzel
  340. spelling

    what is the correct abc order for sister's sisters sisters'

    asked by bill
  341. English

    How did boy come into modern English

    asked by Melanie
  342. science

    what is the walker circulation of normal & El nino conditions? help me please!!!!!!!!!!!!!!!!

    asked by majenta
  343. TEACHING

    HOW DO DUE PROCESS RIGHTS DIFFER FOR PROBATIONARY AND TENURED TEACHERS

    asked by GREG
  344. math

    if 1790 maga watts of power,out of 3000 mega watts generated by a power utility, reach the destination, what percentage of the generated power reaches its destination. please show work

    asked by paully
  345. Algebra

    The area of a rectangular athletic field is represented by the expression square meters. Write an algebraic expression to represent one possible set of dimensions (in the sense Òlength times widthÓ) of the athletic field. Include correct units with your

    asked by Jordyn
  346. Social Studies

    Which one from the 13 colonies, can I write the most and interesting, eyecatching facts about ?????

    asked by S.
  347. Biology/help please

    I am a being from another planet, please explain to me which is alive: a clock or a fish? Compare the two, similarities and differences.Can you help me answer this question ? thank you.

    asked by marie
  348. Physics

    A man weighs 1220 N on Earth. What would he weigh on Jupiter, where the free-fall acceleration is 25.9 m/s2? The acceleration of gravity is 9.8 m/s2 . Answer in units of N.

    asked by Dede
  349. Chemistry

    The only strongly electropositive metal that will not form a saline hydride is what element?

    asked by Brandi
  350. calculus

    solve (12/t)+t-8=0 (solving rational equations)

    asked by carli
  351. college

    creating a slide on debunking gender misconception any tips

    asked by james
  352. accounting

    i. On February 27th, the company sold goods on account to CUSTOMER, $1,800. The goods had a cost of $900. Dungy uses a perpetual inventory system. ans--> A/R (debit) $1800 Sales (credit) $1800 Cost of Goods Sold (debit) $900 Merchandise Inventory (credit)

    asked by Thara
  353. Math

    How do I make a bar graph with this? Mass Distance Mass Distance Empty Full 161 456 420 546 161 273 420 455 161 456 420 456

    asked by Alice
  354. Physics-Please help

    If I have a roller coaster, and hill 1 height is 50cm and hill height 2 is 25 cm and the PE is .9 as it approaches the top of hill 2, how do I calculate the speed. Please help

    asked by Joey
  355. chemistry

    A stock solution is prepared by adding 26 mL of 1.1 M K3PO4 to enough water to make 30 mL. How many moles of K+ are in 21 mL of the stock solution?

    asked by Ashley
  356. us history

    explain the role of the U.S. in the emerging global community.

    asked by Anonymous
  357. 7th grade

    Can u show me a timeline for social studies starting with events from 1914

    asked by Gianni
  358. math

    How do I write 2.59 as a percent?

    asked by liiy
  359. College

    What is one strength you see in the current U.S. health care system? What is one weakness you see? List and describe one of the challenges facing the U.S. health care system.

    asked by Tony
  360. chemistry

    What is the molarity of OH- in a 7.68×10-4 M NaClO solution that hydrolyzes according to the equation. ClO-(aq) + H2O(l) = OH-(aq) + HClO(aq) Constants: Kh=2.86×10-7 Can someone help me figure this one out?

    asked by axl
  361. chemistry

    What is the molarity of OH- in a 7.68×10-4 M NaClO solution that hydrolyzes according to the equation. ClO-(aq) + H2O(l) = OH-(aq) + HClO(aq) Constants: Kh=2.86×10-7 Can someone help me figure this one out?

    asked by axl
  362. US History

    How did Truman's support of civil rights cause a split in the Democratic party? Thanks -MC

    asked by mysterychicken
  363. science 5th grade

    what steps does the body take to digest milk thanks

    asked by Anonymous
  364. math

    Kwan has modeled a number that is less than 999. His model has twice as many 100-blocks as 10-blocks. It has twice as many 10-blocks as 1-blocks. What is the number?

    asked by guru
  365. Honors Algebra

    what is the area of a square that has 48 x

    asked by Robert
  366. chemistry

    If the first pKa of H2S is 7.0, what is the pH of a solution containing 10% H2S- and 90% HS-?

    asked by noell
  367. literacy skill

    why does children with schizophrina finds it extremely diddicult to manage their everyday life

    asked by marlyn
  368. Math

    multiply and simplify 5ib.6oz. * 5

    asked by Joe
  369. adult education

    political cartoon in 1994 in South Africa would most likely depict shackles being removed off a voter in order to express

    asked by Anonymous
  370. Science

    What is a Lysosome? THANKS! :)

    asked by Sofi Lyna
  371. US History

    1. Why did Congress pass the Taft-Hartley Act in 1947? a. to protect union officials against undue invasion of privacy b. to raise wages c. to increase unemployment benefits d. to restrict labor strikes that threatened the national interest D? 20. An

    asked by mysterychicken
  372. chemistry

    Suppose you were asked to determine the exact acetic acid concentration in an acetic acid solution that was about 50% acid?

    asked by Myisha
  373. math

    how would 3 neighbors divide a sharing a rectangle piece of land divide it into 24 equal pieces and what fraction of land would each get

    asked by jeff
  374. math

    A computer company gives a discount of 10% on a new piece of software. If it makes a profit of 4%, what percent does the marked proce exceed the cost price....please show work

    asked by paully
  375. English

    I forgot to include these sentences. I really hope you can look at them, too. 1)I’ve never played any digital games on my cell phone but I could. I can’t surf the net at school but we use a drawing programme called Autocad during our design and

    asked by Franco
  376. Math

    If n ÷ d gives a display of 16.8, does d\n? Why

    asked by Megan
  377. math

    what is 68% of 13

    asked by Anonymous
  378. mgt 435

    Discuss how leaders identify and formulate effective change to address stakeholder expectations. Analyze how organizations need to improve with respect to employee and customer responsiveness to meet objectives

    asked by ASHY
  379. Physics

    Two identical 21.2-kg spheres of radius 12 cm are 30.6 cm apart (center-to-center distance). (a) If they are released from rest and allowed to fall toward one another, what is their speed when they first make contact? (b) If the spheres are initially at

    asked by Oscar
  380. HELP math

    what single discount is equivalent to 2 successive discounts of 15% and 7%.....PLEASE SHOW WORK

    asked by paully
  381. English: Vocab

    would it make sense to write: he stimulated his friend

    asked by Amy
  382. chemistry

    How many calories does it take to convert 22 grams of liquid water with a temperature of 48 degrees C to steam?

    asked by Rachel
  383. alegebra

    x+648*192-73/20467(>=)155-678*564+2368 This is REALLY hard!!! Please help!!!

    asked by Tori
  384. Science

    Ok,I need a list of all the Acids and Alkalis you can think of. Thank-you :)

    asked by Lozzi
  385. English

    Please correct this paragraph. please.. there is no flow in the second paragraph .plz help It is a very interesting and funny story. The writer of the story Francois Rabelais tells us about the adventure of the two giants, Gargantua and Pantagruel in

    asked by sana
  386. physics

    the heating effect of the fuse wire is caused by... a) emmision of moving electrons by stationary atoms b) absorption of moving electrons by stationary atoms c)collisions by moving electrons and stationary atoms thanks

    asked by peter
  387. AP Chemistry

    What is the Dumas Method in regards to the molas mass of a gas?

    asked by D
  388. math

    What should the selling price be for an SUV with a cost of $29,865 and a 42% markup based on selling price?

    asked by Tp2010
  389. English

    1. The car runs on gas. 2. The car runs on gas and electricity. (Are both grammatical? Do we have to use 'on'? Can't we use other prepositions instead of 'on'?)

    asked by rfvv
  390. US History

    21. Explain how Roosevelt might have used data from graphs that showed the United States' Economy (GNP and Personal Income) during the 1932 presidential campaign. I need help answering this. Thanks -MC

    asked by mysterychicken
  391. Porter model

    Identify the competitive forces in Porter’s model. What affect might these forces have on a business? What can a business do to respond to these forces?

    asked by Dee
  392. Algebra

    How many total Roots are in this polynomial equation? (x-4)^5(x^2-11)(x^2+49)=0

    asked by Asheley
  393. Europe

    this time of new ideas and rediscovery is called the....?

    asked by hayhay
  394. physics

    find the magnitude and direction of a combination of 48N east and 14N north.

    asked by tasha jones
  395. Math

    2 2/3 + -1 1/2=

    asked by Stephanie
  396. Math

    -2 3/4 - 6 5/9=

    asked by Stephanie
  397. pre-algerbra

    I have been working on this problem for an hour and a half! I keep getting 1.33 but I know that's not right!! Jim drove the 120 miles to grandmothers house in 3 hours. He increased the speed by 10 miles per hour on the way home. How long did it take him to

    asked by Katie
  398. Physics-Please help explain

    What happens to a rollercoaster's motion in terms of energy when it goes over a second hill that is higher than the first hill.I think it is because the kinetic energy does not have the momentum so when converted into PE, it can't make it over a higher

    asked by Ashley
  399. algebra

    Write the equation for this situation: the value, v, in hundreds of dollars, of Bob’s stamp collection is 12 dollars more than 1/3 of the age, t (in years). Then graph the equation and use the graph to determine the value of Debbie’s coin collection if

    asked by franklin
  400. English

    Hi Can somebody tell me if this is correct? The question is, find lines that Shakespeare enjoy by commenting on the play itself. HAMLET (to FIRST PLAYER) 'Tis well. I’ll have thee speak out the rest soon. (to POLONIUS) Good my lord, will you see the

    asked by Joey
  401. science

    why does the addition of acetone cause the polystyrene to change shape?

    asked by Karen