Questions Asked on
October 16, 2014

  1. science help

    What would happen to the current model of the atom if new information about its structure is discovered in the future? A. The current atomic model would be revised. B. The current atomic model would be strengthened. C. The current atomic model would be

    asked by happy
  2. Math algebra Help please

    A right triangle has an area of 24 ft^2 the dimensions of the triangle are increased by a scale factor of 6 A.48ft^2 B.72ft^2 C.144ft^2 D.864ft^2

    asked by Jeff
  3. AP Calculus

    If 600 cm2 of material is available to make a box with a square base and a closed top, find the maximum volume of the box in cubic centimeters. Answer to the nearest cubic centimeter without commas. For example, if the answer is 2,000 write 2000.

    asked by Alyssa
  4. AP Calculus

    In the answer space below, provide the larger of the two positive integers that add up to 60 and have the largest possible product.

    asked by Alyssa
  5. science help

    A praticular neutral uranium atom has 92 protons,143 neutrons, and an atomic mass of 235. How many electrons does the atom have? A. 92 B. 143 C. 235 D. 337 Is the answer D? Thanks

    asked by happy
  6. CHEMISTRY

    Find the number of SiO2 formula units in m = 1.90g of quartz.

    asked by LIO
  7. Math

    What is the negative square root to 90 to the nearest integer? A. 3 B. -5 C. 7 D. -9 Is the answer D? Thanks

    asked by Anonymous
  8. Calculus

    The population of a colony of bacteria is modeled by the function p(x)=50(e^-x - e^-x^2)+10 ,for 0 ≤ x, where population P is in thousands, x is in hours, and x = 0 corresponds to the moment of introduction of a certain chemical into the colony's

    asked by Mary
  9. physics

    When a jet lands on an aircraft carrier, a hook on the tail of the plane grabs a wire that quickly brings the plane to a halt before it overshoots the deck. In a typical landing, a jet touching down at 240 km/h is stopped in a distance of 95 m. What is the

    asked by Anonymous
  10. math

    Of 320 consumers polled, some purchase Blu-ray movies, some only purchase movies on DVD, and some do both. If 300 people polled purchase Blu-ray discs and 280 purchase DVDs and Blu-ray discs, how many people only buy DVDs?

    asked by Anonymous
  11. Calculus

    The population of a colony of bacteria is modeled by the function p(x)=50(e^-x - e^-x^2)+10 , for 0 ≤ x, where population P is in thousands, x is in hours, and x = 0 corresponds to the moment of introduction of a certain chemical into the colony's

    asked by Mary
  12. health

    6. ________ is an effective classroom management strategy to help prevent dental cavities. (1 point) Flossing at least once per week Teaching children about plaque and fluoride Using sour candy to make children salivate Serving 100% fruit juice as a snac

    asked by stacey
  13. Science Help Urgent!!!!!

    A particular neutral uranium atom has 92 protons, 143 neutrons, and an atomic mass of 235. How many electons does the atom have? a. 92 b. 143 c. 235 d. 337 Is the answer A?

    asked by Frazzled
  14. history

    Which colony was the most upset by the Sugar Act? Georgia South Carolina Pennsylvania Massachusetts

    asked by somebody help i am new
  15. Chemistry

    A 2.764 g sample containing only iron and aluminum metal was treated with acid to form Al(+3) and Fe(+2). The sample was then titrated with a potassium dichromate solution (only the Fe(II) will react with the dichromate). The sample was found to be

    asked by Jessica
  16. Map Rectangle

    The scale of the map is 1:1000. What are the actual dimensions of a rectangle which appears as 4cm by 3cm on the map? What is the area on the map in cm2. What is the actual area in m2.

    asked by abc
  17. history

    Which colony was the most upset by the Sugar Act? Georgia South Carolina Pennsylvania Massachusetts i read it is says Pennsylvania and Massachusetts but ion wich one @ms.sue

    asked by somebody help i am new
  18. Chemistry

    If 6.0 g of Oxygen (O2) reacts with 12.0 g of hydrogen (H2) to give 5.0 g of dihydrogen monoxide. What's the % yield?

    asked by Carla
  19. Ions and octet rule

    Element Z3+ contains 31 protons. What is the identity, and how many electrons does Z3+ have.

    asked by Anonymous
  20. Algebra

    Find the common difference for the given sequence. 1.05, 1.1, 1.15, 1.2, ... 0.005 0.05 0.5

    asked by isaac clarke
  21. history

    which of the following is not a response to the stamp Act?

    asked by abcdd
  22. history

    which of following is the reason that governor wright did not accept noble wimberly jones as speaker of the commons hoise a. he was not eligible to vote. b. he could not read. c. he lived in the backcountry d. he had benn a leader of the sone sof liberty

    asked by somebody help i am new
  23. Physics Help Please!!!! Urgent!!

    1) A 10 kg lead brick rests on a wooden table. if a force of 46N is required to slide the brick across the table at a constant velocity, what is the coefficient of friction? 2) A horizontal force of 100N is applied to a 200 kg refrigerator sitting on a

    asked by Kimberly
  24. Chemistry

    A student determines the iron (II) content of a solution by first precipitating it as iron (II) hydroxide, and then decomposing the hydroxide to iron (II) oxide by heating. How many grams of iron (II) oxide should the student obtain if her solution

    asked by Jessica
  25. Physics

    An electron in an electron beam experiences a downward force of 2.0 x 10^-14 N while traveling in a magnetic field of 8.8 x 10 ^-2 T west. The charge on a proton is 1.60×10^−19. a) What is the magnitude of the velocity? Answer in units of m/s

    asked by Alisha
  26. physics

    A 63.8 kg woman lifts herself 36.6 cm each time she does a chin-up. What force does she exert in lifting herself to the chin position? And, how much positive work does she do in pulling herself up once?

    asked by confused
  27. maths

    320 students have food enough for 80 days. If after 20 days, 20 students leave. How many more days will the food last?

    asked by Anonymous
  28. chemistry

    How many grams of HCl are formed from reaction of 3.58g of H2 with 8.90g of Cl2?

    asked by R
  29. Chemistry

    1/2 H2(g) + 1/2 I2(g) -> HI(g) △H= +28kJ The activation energy for the formation of HI is 167kJ. The activation energy for the decomposition of HI is A. 28kJ B.139kJ C.167kJ D.195kJ I know it is an endothermic reaction.

    asked by Anonymous
  30. college physics

    two billiard balls of equal mass undergo a perfectly elastic collision. if the speed of one ball was initially 5.72 m/s and the other 1.64 m/s. what will their speeds be after the collision

    asked by Anonymous
  31. english

    compare and contrast themes in the crucible and the film pleasantville

    asked by candice
  32. history

    1. Which of the following is not a response to the Stamp Act? (1 point) a.Sons of Liberty groups were formed. b. Violent demonstrations took place. c. Crates of stamps were dumped into the water. d. Colonists marched on Savannah in protest.

    asked by somebody help i am new
  33. Math

    What is the solution to the square root 8 to the nearest integer? A. 3 B. 5 C. 7 D. 9 Is the answer A? Thanks

    asked by Anonymous
  34. science help

    Chromosone pairs contain diffrent versions of genes, which are called? A.alleles B.chromosome C.mitosis D.DNA E.RNA F.diploid G.meiosis H.phenotype Is the answer A??

    asked by happy
  35. English-The Wager

    true or false: once wager has been made protagonist and antagonist are in conflict.

    asked by Celine
  36. physics

    A torque of 12 N ∙ m is applied to a solid, uniform disk of radius If the disk accelerates at what is the mass of the disk?

    asked by Anonymous
  37. Life orientation

    What are the three ways in which career patterns are different now from in the past?

    asked by Lesedi
  38. physics

    A bow with a spring constant of 398 N/m has an arrow placed in it and pulled back a distance of 0.6 m. If the arrow is shot straight up in the air how high will it go? Assume the mass of the arrow is 0.16 Kg.

    asked by confused
  39. Chemistry

    when 2 moles of potassium chlorate crystals decompose to potassium chloride crystals and oxygen gas at a constant pressure and temperature, 78.0 kj of heat is given off. write a thermodynamic equation for this reaction.I don't know how to set up the

    asked by Cynthia
  40. Math

    Do you need to regroup to find 73-35? Explain your answer.

    asked by John
  41. Maths

    If it takes 6 men 4h to dig a hole 6m deep,how long will it take 10 men to dig a hole 5m deep?

    asked by olivia
  42. chemistry

    Calculate the theoretical yield of alum if 0.200g of Aluminum was reacted with excess KOH and H2SO4? I don't even know how to start it. Please help. Also I wanted to say thank you for the help I've gotten from this website it has helped me a lot. I feel

    asked by Luis
  43. history

    which of following is the reason that governor wright did not accept noble wimberly jones as speaker of the commons hoise a. he was not eligible to vote. b. he could not read. c. he lived in the backcountry d. he had benn a leader of the sone sof liberty

    asked by somebody help i am new
  44. Science-Physics

    A fireworks rocket explodes at height h, the peak of its vertical trajectory. It throws out burning fragments in all directions, but all at the same speed v. Pellets of solidified metal fall to the ground without air resistance. Find the smallest angle

    asked by Anonymous
  45. Finance

    Sully Corp. currently has an EPS of $2.14, and the benchmark PE ratio for the company is 20. Earnings are expected to grow at 7.5 percent per year. What is the target stock price in 1 year? Assuming that the company pays no dividends, what is the implied

    asked by Sofia
  46. Math

    Samantha wants to find the height of a pine tree on her yard.she measures the heigth of the mailbox at tree feet and it shadow at 4.8 feet. Then she measures the shadow of the tree at 56 feet . How tall is the tree?

    asked by Miriam
  47. Life orienation

    How could globalisation affect future career prospect

    asked by Lesedi
  48. Bio

    Which membrane proteins are involved with the transport of molecules that otherwise would be unable to enter the cell? a) linker proteins b) glycoproteins c) carrier proteins d) peripheral proteins e) receptor proteins

    asked by Sarah
  49. physics

    A railroad flatcar is loaded with crates having a coefficient of static friction of 0.394 with the floor. If the train is moving at 57.1 km/h, in how short a distance can the train be stopped at constant acceleration without causing the crates to slide?

    asked by brian
  50. 7th grade math

    Not sure how to solve this: Suppose your school is selling magazine subscriptions. Each subscription cost $20. the company pays the school half of the total sales in dollars. The school must also pay a one-time fee of $18. What is the fewest number of

    asked by Alexis
  51. Statistics

    The late English psychologist Cyril Burt was known for his studies of the IQ scores of identical twins who were raised apart. The high correlation between the IQs of separated twins in Burt's studies pointed to heredity as a major factor in IQ.

    asked by Huang
  52. Physics

    A ball rolls without slipping down the track as shown in the figure below, starting from rest at a height h1 = 27 m as shown. The ball is traveling horizontally when it leaves the bottom of the track, which has a height h2 = 8.0 m.

    asked by Hayley
  53. Calculus..

    Two particles are moving in straight lines. The displacement (meters) of particle 1 is given by the function s(t)= cos(4x), where t is in seconds. The displacement (meters) of particle 2 is given by the function s(t)= t^3/3-t^2/2 +2(t) , where t is in

    asked by Mary
  54. uni

    11. Mixing 40.0 mL of a 4.00 M sodium chloride solution with 20.0 mL of a 5.00 M calcium chloride solution results in a solution with a chloride ion concentration of: A) 4.33 M. B) 4.50 M. C) 6.00 M. D) 7.00 M. E) none of these

    asked by ali sbaity
  55. math

    jills fish weighs 8 times as much as her parakeet. together the pets weigh 63 ounces. how much does the fish weigh

    asked by Anonymous
  56. calculus

    find the coordinates of the centroid bounded by y=25x^2 and y=4. the region is covered by a thin flat plate

    asked by Anonymous
  57. physics

    I solved the first question and got the right answer, but I just can't seem to get the correct answer for the second part. (a) An AM radio transmitter broadcasts 52.0 kW of power uniformly in all directions. Assuming all of the radio waves that strike the

    asked by Ashton
  58. math

    Rhonda bakes p pies. Mary bakes 3p pies. If together they bake 20 pies, how many pies does Mary bake?Rhonda bakes p pies. Mary bakes 3p pies. If together they bake 20 pies, how many pies does Mary bake? I would've thought p+3=20 so 20-3=17 making it p=17

    asked by Sara
  59. Science (Physics)

    I need help with these. I'm so confused! Thanks! 1.) An F-14 Tomcat fighter jet goes from rest to a speed of 75m/s in 2.5 s. What is the acceleration? 2.) Preston tossed a red ball upward and it reaches a maximum height of 3.0m What is the final velocity

    asked by Leah
  60. World Regional Studies/ Geography

    In January 2000, cyanide is released to the Tisza River in Hungary. Effect 1: Effect 2: Water Pollution Countries develop industries. Effect 1: Effect 2: Poland’s water in most rivers is unsafe to drink Rain washes fertilizers from fields into bodies of

    asked by Sophia
  61. Calculus

    Derivative of the implicit Function: arctan(x^5y)=xy^5 Here is where I am at. I am pretty frustrated: arctan(x^5y)-xy^5=0 1/1+(x^5y)^2 * (d/dx(x^5)*y+x^5*d/dx(y))-(d/dx(x)*y^5+x*d/dx(y^5))=0 1/(1+x^5y)^2 * (5x^4y+x^5dy/dx) - (y^5+x^5y^4dy/dx)

    asked by Pamela
  62. Chemist - Grade 9 - Urgent.

    Predict the physical properties and relative reactivity of Ba and Sr Cs and Br ( elements from periodic table )

    asked by Sally
  63. Biology

    What is the number one birth defect in California?

    asked by mai
  64. Calculus

    A 13 foot ladder is leaning against the house when it's base starts to slide away. By the time is 12 feet from the house the base is moving at the rate of 5 ft/sec. 1.How fast is the top of the ladder sliding down the wall at that moment? 2. At what rate

    asked by Jonathan
  65. Math

    Susan has a balance of 110 dollars in her school lunch account and she spends 6 dollars per day for lunch. Her sister Evelyn has $83 in her account and she spends 4 dollar per day for lunch. Write and solve an inequality that shows in how many days will

    asked by M
  66. Physics

    The drawing shows a skateboarder moving at 5.71 m/s along a horizontal section of a track that is slanted upward by 49.8 ° above the horizontal at its end, which is 0.516 m above the ground. When she leaves the track, she follows the characteristic path

    asked by Ross
  67. Life orientation

    1. Write three sentences to explain what you understand by trends and demands of the job market 2. List three ways in which career patterns are different now from in the past 3. why do you think it is important to follow trends in the workplace

    asked by Lesedi
  68. algebra

    A car be rented for $55 per week plus .25 per mile. How many miles can driven if you have at most $280 to spend for weekly transportation?

    asked by Anonymous
  69. Science-Physics

    A car is moving at a constant 19.3m/s, and rain is falling at 8.9 m/s straight down. What angle does the rain make with respect to the horizontally observed by the driver?

    asked by Anonymous
  70. physics

    A 65 kg skateboarder is standing on a stationary .5 kg skateboard. the skateboarder steps off the a skateboard with a horizontal veolicty of 1.5 m/s. what is the recoil velocity of the skateboard ignoring friction? 

    asked by Anonymous
  71. Algebra

    An algebra book weighs 6oz less than twice as much as a grammar book. If 5 algebra books weigh the same as 8 grammar books, how much does an algebra book weigh.

    asked by Anonymous
  72. physics

    A wire with circular cross-section of radius 1mm carries a current of The speed of the carriers inside the wire is What is the current density in the wire? the charge density in the wire and how long it takes for an Avogadro’s number of charges to emerge

    asked by JAY Z
  73. physics

    1. A 100N block lies on a frictional surface. A force of 50N was applied horizontally where the block had moved 5 m from the positive direction. Find the work done by the applied force and the work done by the weight of the block. 2. Using Example 1, if

    asked by ree
  74. Chemistry

    Please help! I don't understand these questions at all. :( Fe2O3(s) + 2Al(s) -> Al2O3(s) + 2Fe(l) If 0.50 mol of Fe is produced in 10 secs, what is the rate of consumption of Fe2O3 in mol/s? A. 5.0 x 10^-2 mol/s B. 2.5 x 10^-2 mol/s C. 1.0 x 10^-1mol/s D.

    asked by Nancy
  75. General Math I

    Hi Ms. Sue this is Shayna here. I am writing you this time, because I am very confused in a question of a test I just took this was the question Susan wants to buy a paddle boat for $840. She will pay 20% down and pay the rest in six monthly installments.

    asked by To Ms. Sue
  76. Math

    Which group names all the whole number factors of a composite number? A. 1, 2, 3, 6, 9, 36 B. 1, 3, 5, 9, 45 C. 1, 3 D. 1, 2, 3, 4, 6, 8, 12, 24

    asked by Jane
  77. Science

    Two football players collide head-on in midair while chasing a pass. The first player has a 100 kg mass and an initial velocity of 4.00 m/s in the positive x direction, while the second player has a 130 kg mass and initial velocity of 3.30 m/s in the

    asked by Anonymous
  78. Statisitics

    Identify the population, and the sample in each of the following: A small college has 275 tenured full and associate professors. Twenty professors are randomly chosen to take part in a survey about the incorporation of technology into their teaching

    asked by Terri
  79. physics

    A projectile is shot from the edge of a cliff h = 125 m above ground level with an initial speed of v0 = 145 m/s at an angle of 37.0° with the horizontal. (a) Determine the time taken by the projectile to hit point P at ground level. b) Determine the

    asked by zg
  80. Pre-Calc/Trig...

    Help me please. Solve the equation: (x-3)(x+2)=0 Enter the solution with the lowest value.

    asked by Anonymous
  81. English

    What was Thomas Jefferson's stance on the Declaration of Independence? What is a pro and con of the Declaration of Independence Please Help Me

    asked by Lisa
  82. physics

    A shell is fired from the ground with an initial speed of 1.53 ✕ 103 m/s at an initial angle of 55° to the horizontal.

    asked by jessica
  83. calculus

    Find the point on the plane z = 6x + 9y + 1 closest to the point P = (1, 0, 0). Hint: Minimize the square of the distance. (x, y, z) =

    asked by Anonymous
  84. Materials Science

    A 3m long balance beam is simply supported with an overhang at each end of a=0.5m. A gymnast weighing 50kg is standing a distance c to the right of support A and a distance b to the left of support B. How does the maximum bending moment in the beam depend

    asked by qwerty
  85. Music

    Could somebody help me with my music homework,please...Try to find examples of three pieces of music that are played in three different tempos(fast,medium and slow)....Thank you for help.

    asked by Damian
  86. physics

    5. A woman is wearing her seat belt while driving 95km/h. She finds it necessary to slam on her brakes, and she slows uniformly to a stop in 5 s. Calculate the average force exerted on her by the seat belt (neglecting friction with the seat)? Express the

    asked by jane
  87. Music

    Could somebody help me with my music homework,please...Try to find examples of three pieces of music that are played in three different tempos(fast,medium and slow)....Thank you for help.

    asked by Damian
  88. English

    Ms Sue I am really studying hard I have one more will you check for me? Lew wasn't sure he had locked the front door so after him and Marian left for their vacation at nine o'clock they came back at 9:30. Do I need any commas?

    asked by Karen
  89. social studies

    Can somebody help me on this? I don't know what to answer. Venn Diagram Write details that tell how the subjects are different in the outer circles. Write details that tell how the subjects are alike where the circles overlap. Subject: Squatter Settlement

    asked by Anonymous
  90. Physics Help Please!!!!

    A man pushes a stalled car with a horizontal force of 312 N. The car does not move. What is the frictional drag force on the car? A water-skier (mass=60kg) is pulled by a boat with a horizontal force of 300N. The boat and the skier have a constant

    asked by Jim
  91. Science

    .Define the following terms and provide a example of each: -atom, - compound, - element, -energy, - photosynthesis, -matter, - decomposition. Write it in your own words. . Explain the forms of energy: radiant, chemical, mechanical, electrical, thermal. .

    asked by Taylor
  92. Algebra

    Find the 20th term of the following sequence. -6, -4, -2, 0, ... 32 44 46 I did the math but I don't know if it's correct, I'm not very good in math.

    asked by isaac clarke
  93. Math

    Find all solutions to 7cosθ - 1 = 9cosθ.

    asked by TeeKay
  94. francai

    write a composition about what you do everyday.(a)Aquelle heure te reveille tu chaque matin?

    asked by obed
  95. math

    A woman owns stock in two companies, company A and company B. She owns 79 shares of stock in company A. Each share of stock in company A is worth $12. Each share of stock in company B is worth $19. Write three equations to represent the total number of

    asked by Olivia
  96. chemistry

    what is the volume of 3.85x10^24 molecules of AMmmonium Bromide? please explain I'm confused

    asked by :D
  97. Algebra

    A train left mooseport traveling west at 50 mph. One hour later, another train left mooseport traveling east at 70 mph. How many hours had the first train been traveling when they were 350 miles apart.

    asked by Anonymous
  98. ca;culus

    Find the volume V of the region bounded by z = 240-60y, z = 0, y = 0, and y = 4 -x2

    asked by Anonymous
  99. physics

    A 2.3 kg pendulum bob hangs from a 2 meter string. It is pulled to the side, position A, so that the bob is 111 cm (h on the sketch) above the lowest position, position C. The bob is released and begins to swing. See below. What is its potential energy

    asked by confused
  100. Algebra 1

    I did this conversion problem, but I think it's incorrect. Problem: A bread slicer runs 20 hours per day for 30 days and slices 144,000 loaves of bread. How many loaves per minute are sliced? I did 20hr/1days times 30days/600hrs times 1hr/60mins times

    asked by Maya
  101. arithmetic

    if sheila has 5 times as much as dave and the total number is 18. how much does sheila have

    asked by questionalbe
  102. Science

    What two angles of elevation will enable a projectile to reach a target 16 km downrange on the same level as the gun if the projectile's initial speed is 400m/sec ?

    asked by Siegrain
  103. Science

    What is energy. Give short definition and give an example

    asked by Bizz
  104. english

    In The Wager by Chekhov, is the banker better off because he has learned his lesson and knows he is a better man for it?

    asked by Celine
  105. Math

    Find all solutions to the equation 1 = 2cos θ.

    asked by TeeKay
  106. Materials Science

    Calculate the ratio of the moments of inertia I1I2 of two beams of rectangular cross section of the same width, one with a height h and the other, made up of three thinner beams of height h/3. I1/I2 = ?

    asked by qwerty
  107. algebra

    what is the area of a rectangle with a length that is 5 more than triple the width?

    asked by ashley
  108. EKG

    Trying to write a story geared towards third graders about the blood flow through the heart. Did help

    asked by Gabby
  109. physics

    a 1.00x10^3 kg car traveling at 22.5 m/s on level ground undergoes a perfectly inelastic collision with a spring loaded barrier (k= 8.00x10^3 N/m) weighing 1250kg. How much does the spring compress when they come to a stop? can someone help me set this up?

    asked by Anonymous
  110. Algebra2

    2i^7 i^42 i^100

    asked by JJ
  111. physics

    A aluminum wire has a diameter and uniform electric field of imposed along its entire length

    asked by JAY Z
  112. Math

    there are some nickels and dimes in a jar. the number of nickels is one less than twice the number of dimes.if the total value of coins is 8 dollars and 55 cents, then find the numbers of dimes? explain?

    asked by sharonda
  113. physics asap!!! thank you

    A boy runs 18.4 blocks North, 12.9 blocks Northeast, and 19.7 blocks West. a)Determine the length of the displacement vector that goes from the starting point to his final position. b)Determine the direction of the displacement vector. Use counterclockwise

    asked by Danny
  114. Physics

    A skateboarder moving at 7.18 m/s along a horizontal section of a track that is slanted upward by 48.5 ° above the horizontal at its end, which is 0.741 m above the ground. When she leaves the track, she follows the characteristic path of projectile

    asked by Zac
  115. chemistry

    a sample of freon-12 occupies 25.5 litters at 28 celsius find its volume at 15 degree celcius when the pressure is kept constant

    asked by James
  116. Math

    How many different combinations using pennies, nickels, dimes, quarters, and half dollar pieces can you make to equal 60 cents

    asked by Bernie
  117. mechanancs.

    Name any object around the house that has 6 forces acting on it.

    asked by adigun.
  118. physics

    An aluminum wire has resistance of per meter and carries a current If the power dissipated is find the electric field within the wire

    asked by JAY Z
  119. calculus

    Find the maximum and minimum values of f(x, y) = xy on the ellipse 8\!x^{2} + y^{2} = 9.

    asked by Anonymous
  120. Biology

    how does a change in the sequence of nucleotides in a strand of DNA might cause a protein to malfunction.

    asked by Sara
  121. physics

    Determine whether each statement below is true or false. The force necessary to lift an object is its mass times g. Kinetic energy is the energy of motion. Stopping distance is doubled, if speed is doubled. Work is the product of force and time. A joule is

    asked by confused
  122. math

    determine the number of zeros at the end of 50! using prime factorization

    asked by RAJ
  123. statistics

    in new york city the average response time for calls to the first depatrment is a bout 5 minutes with a standarrd deviation of 1.5 minuties suppose response follow a normal distribuation. 1-what is the probability that a response time exceeds 9 minutes/

    asked by malak
  124. programming

    please Help... Write a pseudo code that prompt the driver to enter the miles at the before taking the car and miles when returning the car.the program must him to enter the fuel consumed that day.the must be able to determine the fuel consumption for that

    asked by Josefina
  125. Programming

    please Help... Write a pseudo code that prompt the driver to enter the miles at the before taking the car and miles when returning the car.the program must him to enter the fuel consumed that day.the must be able to determine the fuel consumption for that

    asked by Josefina
  126. math

    what the difference of 13 over 32 and 1 over 2

    asked by allen
  127. math

    Ralph bought 4 books for k dollars each. Iris bought 5 books for k dollars each. If together they spend 90 dollars, how much is each book? 4k+5k=90 so 9k=90 90/9=10 so $10 each

    asked by Sara
  128. Statistics

    A supermarket chain wants to verify that the bottler of their store brand of soda is in fact filling the cans to the specified volume. They took several “cubes” from the shelves and measured the amount in each can. Is this an observational study or a

    asked by Terri
  129. Physics

    A projectile is accelerated from rest at point A along a circular track of radius 2 m, as shown in Fig. 5.1. Gravity acts in the z direction. The rate at which the speed of the projectile increases as a function of time, t, is at = 2t ms-2. What is the

    asked by Lucy
  130. Chemistry

    Calculate the number of milliliters of 0.782 M KOH required to precipitate all of the Mn2+ ions in 112 mL of 0.461 M Mn(NO3)2 solution as Mn(OH)2.

    asked by Jessica
  131. Trigonometry

    Solve tan2A - 2tanA = -1 for 0º≤A≤360º.

    asked by TeeKay
  132. Math

    Find all solutions to 5cosθ = 3cosθ - 1.

    asked by TeeKay
  133. Life orientation

    Why it is important to follow trends in the workplace?(2 reasons please)

    asked by Happy
  134. Wording/Vocab

    Did I use the word consummately correctly? I consummately agree to what you said about nature in the book...

    asked by INeedHelp
  135. Chemistry

    Increasing the surface area will increase the reaction rate in: 1. N2(g) + O2(g) -> 2NO(g) 2. 2Mg(s) + O2(g) -> 2MgO(s) 3. CaCO3(s) + 2H+(aq) -> Ca2+(aq) + H2O(l) + CO2(g) MY WORK: I think it is 2 & possibly 3. 1 is a homogeneous reaction but is 3 a

    asked by katie
  136. Biology

    Describe the ATP molecule and it's function within a cell ????????????????please help??????????

    asked by Hunter
  137. physics

    Could someone assist me in setting up this equation? Thanks!! A block of mass 2 kg attached to a spring lies on a flat surface. When the block is pulled 5 cm to the right a force with a magnitude of 340 N is need to hold it in place. What is the work done

    asked by please help
  138. math

    each rabbit costume needs one and one half yards of white fur fabric,a yard of blue striped fabric,and a quarter of a yard of pink felt for the ears.

    asked by nina
  139. Algebra2

    write a equation of a line that is perpendicular to y=-2/3-5 and goes through -4,3

    asked by jj
  140. chemistry

    How would you prepare 385 ml of a 0.856 m NaOH solution starting with a 4.93 m stock solution

    asked by Keyera
  141. Scince

    What gene and/or chromosome is mutated in this breast cancer disorder?

    asked by edu
  142. physics

    A boy runs 18.4 blocks North, 12.9 blocks Northeast, and 19.7 blocks West. a)Determine the length of the displacement vector that goes from the starting point to his final position. b)Determine the direction of the displacement vector. Use counterclockwise

    asked by Danny
  143. History

    What was Thomas Jefferson's stance about how when the government fails to protect their rights, it is their duty to overthrow the government and establish a government that is designed to protect their rights

    asked by Lisa
  144. planning & implementing for the environment

    The organization of the environment provides _______ for children. A.curriculum B. routines C.experiences D.guidanceThe organization of the environment provides _______ for children. B is my answer

    asked by Amanda
  145. Drug Law

    The author argues that illegal use of____ highlighted the presence of racial discrimination in the criminal justice system. 1)crack & powder cocaine 2)pot & meth 3)crack & pot 4)pot & heroin

    asked by Sally
  146. Algebra

    A stagecoach left Drygulch traveling east at 3 km per hour. Two hours later, another stagecoach left Drygulch traveling in the same direction at 40km per hour, How many hours had the first one been traveling when the second one caught up?

    asked by Anonymous
  147. Advanced math

    use integration to find the volume of a pyramid with heighs and square base witht of 6 unit and square base with sides of 4 units

    asked by Anonymous
  148. Math

    Should the phrase (the product of 2 plus a number divided by 3 and a number minus 4) be expressed as 2 + (n/3)+(a-4) Thank You

    asked by Mickey
  149. math

    -2/5x - 9 < 9/10

    asked by shy gurl
  150. Minority Contract

    The Disproportionate Minority Contract (DMC)mainly requires ______________. 1)the office of juvenile justice to rely primarily on self report data 2)each state to challenge inaccurate depictions of crime 3)the Department of Justice to reduce the number of

    asked by Sally
  151. planning & implementing for the environment

    In acquiring equipment for a child care facility, you'll most likely A.have to purchase all of the equipment for your center. B.be able to acquire most of your equipment from free and inexpensive sources. C.purchase 90 percent of your equipment locally.

    asked by Amanda
  152. immingration & crime

    What impact do increase in immigration have on crime? 1)An increase in both crime and street gang membership 2)A decrease in both crime and street gang membership 3)An increase in crime but not in street gang membership 4)A decrease in crime but an

    asked by Sally
  153. normal distribution

    in new york city the average response time for calls to the first depatrment is a bout 5 minutes with a standarrd deviation of 1.5 minuties suppose response follow a normal distribuation. 1-what is the probability that a response time exceeds 9 minutes/

    asked by malak
  154. Sociology

    Which of the following statements would be most likely? 1)Social class is defined by wealth & income alone. 2)Social class includes wealth, prestige,& influence. 3)Social prestige is directly related to economic status. 4)Life chances are equally available

    asked by Sally
  155. Math

    1. Find the sum of the first five terms of the sequence 2/3, 2, 6, 18, ..... 2. Is this a geometric sequence? 2x, (4x-2), (6x-4), ..... 3. Show the equivalent values of the decimal 0.7575757575..... in fraction form. 4. What is the sum of the geometric

    asked by Brianna
  156. math

    how many different combinations can you make using pennies, nickels, dimes, quarters, and the half dollar that equal 60 cents?

    asked by Anonymous
  157. smi181q

    calculate the pH at 25c of 0.080moldm-3 HNO3

    asked by Ephodia
  158. algebra proof

    Prove (ab)/b=a Proof 1. (ab)/b=(ab)x 1/b Is this property of reciprocal? or definition of division

    asked by Sweet Pea
  159. math

    solve this equation a divided into 7=20 the actual problem has the divide sign. I got a=20*7 so a=140

    asked by Sara
  160. Math

    AV needs to raise 700 dollars for their field trip. They have already raised 315 dollars by selling cookies in the Library. If there are 2 weeks (schol days only) to raise their remaining money how much money will need to be made daily

    asked by M
  161. Math

    Felix wants to get at least one hour of exercise each day Today he has run for 40 minutes. Write and solve an inequality that shows how much longer he needs to exercise to reach his goal x=hour x>40

    asked by M
  162. Calc

    Please help with implicit differentiation. Find dy/dx for 4x^3+x^2y-xy^3 = -4

    asked by Jake
  163. physics

    two spherical boys float half some edge in a calm deep sea their radius a, is very much small er than their separation b, calculate the resistance between them If the resistivity of the is rho water

    asked by Adewumi
  164. Math

    Solve the following equation for y 1/2y-2=1/3x

    asked by M
  165. Math

    Is this a geometric sequence? x + 1, 2x + 2, 5x + 1 .....

    asked by Brianna
  166. Spanish 1

    Hola Tia, Gracias por el dinero de mi cumpleaños. Compré pantalones y camisas en la tienda de descuentos. Cuestan $20 dólores. Pagué $2.50 dólores por los patalones verdes y $2.50 dólores por los jeans morados. Me gusta más los camisas grises.

    asked by Tony
  167. Math

    Joel works part time at a grocery store to earn extra money to buy a furniture set that costs 1200 She currently has 750 saved and wants to add 35 dollars each week from per paycheck Write an inequality that could be used to determine w the number of weeks

    asked by M
  168. Math

    A={w|wor= 6} Please explain this to me I am lost.

    asked by Frustrated with math
  169. Algebra

    A car leaves Denver at 30 km/h traveling south. Two hours later, another car leaves Denver traveling south at 40 km/ h. How many hours had the first car been traveling when the second car catches up?

    asked by B
  170. math

    segment A'B is the image of segment A'B after a translation up by 6 units

    asked by michelle
  171. Algebra

    Belle is swimming in the lake and is 230 feet from shore. She starts to head back to shore at arate of 2ft/s. Ten seconds later, Max hops in a row boat and rows towards Belle at a rate of 5 ft/s. How many seconds will Bell have been swimming when Max

    asked by B
  172. chem

    the work done by a gas when it expands to 96 L is 4100 J. if the external pressure is 2.0 atm, determine the initial volume of the gas.

    asked by bekah
  173. arithmetic

    what is the perimeter of a lions cage which is 12mlong and 5.5 wide

    asked by Anonymous
  174. math

    what is the ratio of the circumference of circle to its radius?

    asked by circles
  175. Statistics

    The manufacturer of Sleepeze has asked you to test the effectiveness of the drug. You decide to test the effectiveness using the drug and a placebo. You select a select a group of 500 subjects and randomly assign them to either the treatment group or the

    asked by Terri
  176. Advanced math

    Show the number of partitions of n in which only odd parts may be repeated equals the number of partitions of n in which no part appears more than three times

    asked by Anonymous
  177. physics

    A projectile is shot from the edge of a cliff h = 285 m above ground level with an initial speed of v0 = 155 m/s at an angle of 37.0° with the horizontal. (a) Determine the time taken by the projectile to hit point P at ground level. Incorrect: Your

    asked by zg
  178. Science

    Explain the forms of energy: radiant, chemical,mechanical,electrical, and thermal

    asked by Bizz
  179. math

    A cooked steak weighs 6 tenths of a pound, Mario eats 9/10 of the steak. How much did the portion that he ate weigh?

    asked by bj
  180. Advanced math

    Find the original generating function in closed form for (1,2,3,4,5,...).

    asked by Anonymous
  181. physics

    a net force of 72 n is applied to a 48 kg box starting from rest for 8 s. what is the final velocity of the box? I need someone to show me how to set up. thanks

    asked by Anonymous
  182. math

    Thank you Ms. Sue.

    asked by bj
  183. Science

    Explain, how a substance will dissolve differently if the temperature changes. Thank you for help.Kinga

    asked by Kinga M.
  184. Grade 9 chemsitry

    Predict the physical properties and relative reactivity of Ba and Sr Cs and Br ( elements from periodic table )

    asked by Sally
  185. history

    why isnt jiskha not allowing me to ask a question

    asked by abcdd
  186. chemistry

    how many sig figs are in 85,100?

    asked by zea
  187. math

    Equivalent of five thousandths

    asked by Anonymous
  188. Algebra

    what is the area of a rectangle with a length that is 5 more than triple the width?

    asked by Anonymous
  189. math

    From a box containing 5 blue marbles,10 red marbles,and 8 yellow marbles,Lisa removed 3 marble,one of which was blue.f she removes one more marble at random,what is the probability that it will be blur? a. 1/4 b. 5/21 c. 1/5 d. 2/7 e. 1/6 please answer and

    asked by thomas
  190. Math

    Joelle works a part time at a grocery store to earn extra money to buy a furniture set that costs 1200 dollars She currently has 750 saved and wants to add 35 dollars each week from her paycheck Write an inequality that could be used to determine w the

    asked by M
  191. Algebra

    Solve for x in each of the following: A: 2/3 = x/18 B: 3/x = 3x/x^2 I think I have the first one. I am clueless on the second one! HELP!

    asked by Anna
  192. Algebra

    The length of a rectangle is 3 times the width. If the length is increased by 4 cm and the width is decreased by 1 cm,the parimeter would be 102 cm, find the dimensions of the original rectangle.

    asked by Anonymous
  193. Creative Writing

    What are some effective ways you can become better writer?

    asked by INeedHelp
  194. Algebra

    The length of a rectangle is 3 times the width. If the length is increased by 4 cm and the width is decreased by 1cm the parimeter will be 102 cm. find the dimensions of the original rectangle. I don't know the equation, please show the work. Not just the

    asked by B
  195. Science

    Would somebody be so kind and help me with my homework,please?Explain, how a substance will dissolve differently if the temperature changes. Thank you for help.Kinga

    asked by Kinga M.
  196. english

    Are two the following sentences correct? The word "cool" originally meant a slight low temperature. About an hour later Jesus arrived. I am having a time with commas and fragments

    asked by Karen
  197. Math

    What is the value of x in the sequence x+1, 2x+2, 5x+1, .....

    asked by Brianna
  198. Physics

    A laser that emits pulses of UV lasting 2.95 ns has a beam diameter of 4.05 mm. If each burst contains an energy of 4.60 J, what is the length in space of each pulse? What is the average energy per unit volume (the energy density) in one of these pulses?

    asked by Ashton
  199. Math

    What is the sum of the geometric sequence 4/3, 2/3, 1/3, 1/6, ....? I got 8/3, am I right?

    asked by Brianna
  200. Physics

    A 2.6 kg block slides down a 25° inclined plane with constant acceleration. The block starts from rest at the top. At the bottom, its velocity is 0.80 m/s. The incline is 1.6 m long. (a) What is the acceleration of the block? m/s2 wb=m*g=2.6*9.8=25.48

    asked by Miah
  201. Physics

    A solenoid 74.5 cm long has 350 turns and a radius of 2.26 cm. If it carries a current of 1.69 A, find the magnetic field along the axis at its center. Answer in units of T

    asked by Alisha
  202. planning & implementing for the environment

    The program that will be most likely to have flexible schedules with large blocks of time is  A. adult-centered. C. child-centered. B. child-initiated. D. open.  C is my answer

    asked by Amanda
  203. 2nd grade math

    It is greater than 43 and less than 52. If you add the digits, the sum is 8. Write the number word

    asked by Crystal
  204. planning & implementing for the environment

    Suppose that, in your opinion, children need a highly structured environment in which the teacher guides the children and free selection of activities is kept to a minimum. Which programphilosophy would you most likely adopt?  A. Montessori B.

    asked by Amanda
  205. Math

    Would this phrase the quotient of 2 and the sum of a number and 5 be expressed as (4 / 2) + (x + 5)? Any help would be appreciated. Thank You

    asked by Josh
  206. Math

    estimate the area of the rectangles 5 7/9 by 3 1/5 7 7/8 by 1 1/3 Estimate each product. 3/8 X 4

    asked by Max
  207. planning & implementing for the environment

    Purchasing equipment that has multiple uses can A. be more accessible to the children. B. make less work for staff. C. cut costs and encourage creative play. D. be easier to find. My answer is A

    asked by Amanda
  208. science

    what are 3 examples for sodium

    asked by t aylor
  209. mechanancs.

    Name any object around the house that has 6 forces acting on it.

    asked by adigun.
  210. planning & implementing for the environment

    Which of these factors is most likely to determine the total number of children you can take into your facility? A.Children's needs B. physical space available C. Program philosophy D. Staff members skills My answer is B

    asked by Amanda
  211. Sociology

    Which of the following disadvantages built into the criminal justice system is not class based? 1) Jim Crow laws 2)Visibly crowed residential areas 3)An ability to pay bail 4)Racial profiling is the reason for African American pedestrian stops

    asked by Sally
  212. English

    Did I rewrite this run-on sentence correct? Ellie's new glasses were much stronger than her old ones. As she walked out of the doctor's office the floor seemed to leap up at her.

    asked by Karen
  213. Algebra2

    so on 2^7i list i as -1 seven times equals out -1 or -i then what i still cant solve i^100

    asked by jj
  214. english 1

    the concept of friends proves ironic in the poem

    asked by Anonymous
  215. Biology Help

    how does the structure of a cellulose molecule relates to the molecule’s function?

    asked by Sara