1. physics

    What is the mass of an object that requires a force of 65N to accelarate it at a rate of 13 m/s2?
  2. physics

    A pendulum is 1.0 m long and is drawn aside 30.0* and let go. Find the velocity at the lowest point.
  3. Physics

    A ball thrown downward with an initial velocity of 20m/s.what will be itsvelocity after 5s
  4. physics

    If you tried to smuggle gold bricks by filling your backpack, whose dimensions are 66 cm 18 cm 15 cm, what would its mass be
  5. physics

    An electron travels 7.63 m in 7.33 × 10−8 s. How fast does it travel? Answer in units of cm/s
  6. physics

    what is the importance/significance of calculating the magnetic flux density of a solenoid?
  7. physics

    mass of coaster is 800kg second hill is 70m do you take 800*70*9.8=548800 Please help
  8. physics

    explain why a child on a swing comes to rest directly below the top of the swinng
  9. physics

    how do you find the verticle component of velocity of a projectile just as it strikes the ground?
  10. physics

    What is the wavelength associated with a golf ball of mass 45 g driven off the tee with a velocity of 30 ms-1.
  11. physics

    Explain how the pitch of the roaring sound relates to the length of the tube.
  12. physics

    if a wooden beam is 30 x 20 x 500 cm. and has a mass of 150 kg. what is the density of the wood
  13. Physics

    Acoustics. How do engineers design buildings to reduce noise pollution?
  14. Physics

    Determine the x-intercepts of the polynomial function y=-6(x+7)^4 + 5. Round to two decimal places, if necessary.
  15. physics

    Two point charges, each 6*10-5 C, are separated by 30 cm. What is the electrostatic force produced by this arrangement?
  16. physics

    The x-component of an electric field vector E = (200 N/C, 45 deg) is ___N/C.
  17. Physics

    Describe how you can determine the specific heat of an unknown metal whose mass is known.
  18. physics

    A bus that is traveling at 35.0 km/h, speeds up at a constant rate of 3.4 m/s2. What velocity does it reach 6.8 s later?
  19. physics

    If a wheel 211 cm in diameter takes 2.25 s for each revolution, find its period. T=?s
  20. Physics

    Describe how surface area and volume are related in solids? Give an example.
  21. Physics

    we have to transpose the following equation to find p, but I don't quite understand how to come up with the correct answer: x^2/p^2 + y^2/q^2 = 1 Appreciate help, thanks
  22. physics

    How many minutes would it take a radio wave to travel from the planet Venus to earth?
  23. Physics

    How can you demonstrate that water is denser than ice without weighing them? What is the principle involved?
  24. Physics

    How much force is needed to make a 1,400 kg car moving at 35 m/s come to a stop in 5.2s?
  25. Physics please help!!

    A 12.1 g CD with a radius of 6.16 cm rotates with an angular speed of 31.1 rad/s. What is its kinetic energy?
  26. physics

    calculate the de-broglie wvelenth of the electron orbitting in the n=2 of hydrogen atom
  27. physics

    5. An object that has kinetic energy must have A) momentum. B) acceleration. C) a force applied to it. D) All of these. E) None of these.
  28. Physics

    calculate K.E in Joules of a baseball w/ a mass of 237.2 cg moving at 85.00 mph
  29. Physics

    Equation y=5 sin(3x-4) determine the freguency,speed,period of waves
  30. Physics

    A charge q1=7.8x10^-6 C is placed at the origin. q2=-3.4x10^-6 C is placed at y=-1 m, x=2 m. q3=-9.2x10^-6 C is placed at y=4 m. What is the total force on q1? On q3?
  31. physics

    a 1200 kg car goes from 15m/s in 16s. What is the average force acting on it?
  32. To drwls

    I posted some Physics questions yesterday, but no one got the chance to look at them, so can u please go to 2nd page and look through them.
  33. physics

    5. An object that has kinetic energy must have A) momentum. B) acceleration. C) a force applied to it. D) All of these. E) None of these.
  34. physics

    A 87-g ice cube at 0°C is placed in 886 g of water at 28°C. What is the final temperature of the mixture?
  35. physics

    For non-conservative forces, the work done does depend upon the path taken. True or False?
  36. physics

    What is the effect of increasing the inclination of the track to the acceleration of the rider in the experiment?
  37. physics

    a car starts from rest and accelerates for 7.8s with an acceleration of 2.3 m/s squared. how far does it travel
  38. physics

    a year ago she measured 98cm from her tree . now it 1.1m tall how much has it grown
  39. physics

    what is net force acting on the ball after attaning terminal velosity?
  40. Physics please help!!

    A 12.1 g CD with a radius of 6.16 cm rotates with an angular speed of 31.1 rad/s. What is its kinetic energy?
  41. Physics

    A ball rolls off the edge of a balcony at 8.0 m/s. Find its speed after 3.8 s in the air. Use g = 10. m/s2
  42. physics

    An object is dropped from a height H. During the final second of its fall, it traverses a distance of 57.8 m. What was H?
  43. Physics

    If the gravitational force between the electron (9.11 ✕ 10-31 kg) and the proton (1.67 ✕ 10-27 kg) in a hydrogen atom is 1.06 ✕ 10-47 N, how far apart are the two particles?
  44. physics

    What is the mass of an object that requires a force of 65N to accelerate it at a rate of 13 m/s2?
  45. Physics

    can anyone give a site that have problems about pressure with solution.. urgently needed.. thanks :)
  46. physics

    A 87-g ice cube at 0°C is placed in 886 g of water at 28°C. What is the final temperature of the mixture?
  47. Physics

    If a car delivers 76.2 hp of power, how much time will it take for the engine to do 5.78e5 J of work?
  48. Physics

    How many kcal of heat are required to vaporize 25.0kg of water at 100°C?
  49. physics

    At what speed should an object be projected to reach the maximum range of 200 m ?
  50. physics

    You have exactly 1 L of ethyl alcohol at room temperature 23 C. You put it in a refrigerator at 4 C.What's its new volume?
  51. Physics

    When a mass is hung from a spring stretches it by 15 cm. What is the period of the oscillations of this system?
  52. University physics

    prove the following rules if True or False using Boolean algebra (a)A+AB = A+B (b)(A+B)(A+C) = A+BC
  53. physics

    If 1g of steam is mixed wid 1g of ice, then what will be the resultant temperature of the mixture?
  54. physics

    Explain how the specific heats of materials are measured using the technique of calorimetry.
  55. physics

    Just wanted to say a quick thanks to Steve and Damon, figured it all out, thanks guys, awsome!!!
  56. physics

    A car travels in a straight line for 4.6 h at a constant speed of 95 km/h . What is its acceleration?
  57. Science: Physics

    A circle graph has labeled segments of 5.7%, 21%, 13, and 6%. What % does the unlabeled segment have?
  58. Physics

    Does the axis system chosen affect the magnitude of potential energy? I say yes
  59. Physics

    The oscillator of a 96.1-MHz FM station has an inductance of 1.8μH. What value must the capacitance be? 1.5e-12 is wrong?
  60. physics

    if you jump upward with a speed of 2mls, how long will it take before you stop rising?
  61. 11th grade Physics

    How many current paths are there in a parallel circuit connection?
  62. physics

    A projectile is shot straight up from the earth's surface at a speed of 1.50×104 .
  63. Physics

    A 1400-kg race car can go from 0 to 90km/h in 6.0s . What average power is required to do this?
  64. 11th grade Physics

    How many current paths are there in a series circuit connection?
  65. physics

    A 3 kg book is lifted 5 meters above the floor for 250 seconds. What is the work done?
  66. Physics

    What are the components of a vector of magnitude 1.5 m at an angle of 35 degrees from the positive x-axis?
  67. Physics!

    A 40 kg girl runs up a flight of stairs that is 34 m high. How much work does this require?
  68. physics

    What acceleration is produced by a force of 250N acting on a mass of 25KG?
  69. Physics

    How can you prove that acceleration due to gravity is the same in a resting and moving frame?
  70. AP Physics

    A car slows down from 18 m/s to rest in a distance of 91 m. What was its acceleration, assumed constant?
  71. physics

    Liquids exert pressure at Right Angles to the surface of container.Please explain this with an example
  72. Physics!

    How much impulse stops a 46-kg carton sliding at 3.0m/s when it meets a rough surface?
  73. physics

    You throw a ball straight up at 25 m/s. How many seconds elapse before it is traveling downward at 13 m/s?
  74. Physics

    If a ball were to fall off a 180cm table,how fast would it be going halfway to the ground?
  75. Physics

    A body of mass m moves under the influence of force F(r). Given it's trayectory r(t), find F(r).
  76. Physics

    An object has a volume of 4.0m^3 and weighs 40,000 Newtons. What will be its weight in water?
  77. physics

    Which of these two bodies gets its internal heat from nuclear processes? A) Both.B) Sun.C) Neither.D) Earth.
  78. physics

    Determine the net force necessary to give an object with a mass of 2.1 kg an acceleration of 3.5 m/s2.
  79. physics

    You throw a ball straight up at 25 m/s. How many seconds elapse before it is traveling downward at 13 m/s? 1 s
  80. Physics

    What equation gives the velocity as a function of time for an object with constant acceleration?
  81. Physics

    Is there a difference in current between two ciruits if one circuit has the lightbulbs in series while the other one has them in parallel.
  82. physics

    What equation gives the position as a function of time for an object with constant acceleration?
  83. Physics

    I drop an object from a height of 500.0 m. How long does it take to hit the ground?
  84. physics

    How will changing the charge change the electric field strength at a distance?
  85. Physics! NEED HELP!

    A 40 kg girl runs up a flight of stairs that is 34 m high. How much work does this require?
  86. Physics

    What term describes a force that causes an object to move in a circular path?
  87. Physics

    A car traveling at 14 m/s accelerates at 2.11 m/s2 for 14 seconds. To the nearest meter how far does it travel?
  88. Physics Help!!!

    With the energy needed to warm up some amount of water from 26°C to 44°C, how high could you lift it?
  89. physics

    show that in the limit that the radius of the sphere goes to zero to kept the magnetic moment constant
  90. physics

    a suitcase weighs 30 kg wt.everytime i weigh it on a spring balance,the reading is different.WHY?
  91. Physics check

    The spectral lines for elements are sometimes called atomic..... spectra?
  92. physics

    What are four situations where photovoltaic cells would have an advantage over other sources of electric energ?
  93. physics

    why are the lengths of days in spring and autumn the same? if the sun does not set, why is it so cold?
  94. physics

    why when steady state conditions apply the rate of heat flow is the same?
  95. physics

    how much work is required to give n object 450J of kinetic energy?
  96. physics

    how much work is required to give an object 600 J of potential energy?
  97. Science

    Name 3 physical (physics) occurances that happen within a roller coaster ride?
  98. Physics

    How long does it take light traveling from the sun at 3.0 x 10^8 m/s to reach Jupiter, which is 780 x 10^6 km away?
  99. physics

    A certain car can go from 0 to 100 km/h in 10 s. If the engine delivered twice the power to the wheels, how many seconds would it take?
  100. physics

    A storage tank of negligible mass and 30 m high is filled with gasoline
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