physics please HELP !

74,755 results, page 52
  1. physics

    A drag racer accelerated from 0 to 475km/h in 4.88 s. Assuming a constant acceleration, how far did it travel?
  2. physics

    2) The weight of tank is 50 000 kg, area of his belts is 5 m2. What pressure acts on the ground?
  3. Physics

    A tennis ball is thrown up in the air. It stays there for 12.1 seconds how fast did you throw it?
  4. physics

    how long does a car with an acceleration of 2.0 m/s^2 take to go from 10m/s to 30m/s?and show the solution how do you get the answer.
  5. physics

    if a teacher wanted to demonstrate mass in the classroom, which of the following objects should she use? a ruler or an eraser
  6. physics

    2) The weight of tank is 50 000 kg, area of his belts is 5 m2. What pressure acts on the ground?
  7. physics

    2) The weight of tank is 50 000 kg, area of his belts is 5 m2. What pressure acts on the ground?
  8. Physics

    Calculate the tangential speed of the earth around the sun (assuming a circular orbit).
  9. physics

    2) The weight of tank is 50 000 kg, area of his tracks is 5 m2. What pressure acts on the ground?
  10. Physics 1

    (II) How close to the edge of the 20.0-kg table shown in Fig. 9–47 can a 66.0-kg person sit without tipping it over?
  11. Physics honors

    If a racer runs at an average speed of 7m/a how far will she run in 1 min 45 seconds?
  12. physics

    An airplane starts from rest and accelerates at 11.5m/s^2. What is its speed at the end of a 655m runway?
  13. Physics

    a westward force of 20 N acts on a 2.0 kg object moving eastward at 60 m/s for 2.0 s. What is the resulting velocity?
  14. physics

    vander waal b for oxygen is 32 cm3/mol compute the diameter of o2 molecule.
  15. Physics - projectile

    a ball is thrown straight up at 50 m/s. What speed will it be when it returns to the thrower's hand?
  16. Physics

    A polar satellite is launched at 850 km above earth.find its orbital speed
  17. Physics

    What does shifting the phase between the sources in a double slit experiment do to the interference pattern?
  18. Physics

    How would you change the following Galilean transformation equations in the case where a frame was moving both in the x and the y direction? (Use the following as necessary: x, y, z, Vx, Vy, t.) x' = y' = z' = t' =
  19. Physics

    A ball is allowed to freely from certain height.It covers a distance in 1st second equals ti: A)2g B)g C) g/2 C)none
  20. physics

    What average power is required for a runner with a mass of 80 kg to reach a speed of 8.2 m/s during a time of 1.8 s?
  21. physics

    The speed of a train increased from 15 mi/hr to 25 mi/hr in a distance of 500 ft. Calculate the average acceleration in ft/s2.
  22. Physics

    If the period of the moon were 31 days while its orbit radius 3.8x10^8m, what would the mass of the Earth be?
  23. Physics

    Where should most of the mass be for an industrial fly wheel? Why? can't find any thing about this in my book. need help answering this.
  24. physics

    find the maximum voltage that can be appliedto a 8 k ohm resistor rated 0.50 watt?
  25. physics

    expressions for the force experienced by the charge when it enters the magnetic field at an angle?
  26. physics

    find the maximum voltage that can be applied ti 8 k ohms resistor rated 50 Watt?
  27. Physics

    What is the direction of force of friction on a bicycle on front and back wheel while paddling?
  28. physics

    Two masses are hanging over a frictionless, massless pulley as shown blocks_pulley_aMass m1 is 5.0 kg and mass m2 is 7.0 kg
  29. Physics

    Which force acts opposite of the direction of displacement of the object? I think it would be friction...but could it be spring?
  30. physics

    A subway train is designed with a maximum acceleration of +0.17 m/s2, which allows for both passenger safety and comfort.
  31. physics

    calculate the impulse to stop a 1500kg car moving 90kmper hours
  32. Physics

    what do you call the source of an intense narrow beam of coherent monochromatic light?
  33. Physics

    Does the de Broglie model assert that an electron must be moving in order to have wave properties?
  34. physics help

    How much energy must be removed from a 200g block of ice to cool it from 0C to -30C? What is the equation for this?
  35. physics

    How far will a car moving at 50 miles an hour travel in the time it takes to sneeze?
  36. physics

    The mass of an iron cube having an edge length 1.8 cm is 70 g. Find itd density.
  37. physics

    what is the magnitude and direction of the electric field 20.0 cm cm directly above an isolated 33.0 10 neg6 c charge?
  38. physics

    Is there a way to calculate the moment of inertia of a hanging mass (3.1 kg) without length & width dimensions?
  39. physics

    calculate the total area of the walls of a room 5m long 4m wide and 2.5m high
  40. Physics check

    In 1906, J. J. Thomson won the Nobel Prize for the discovery of the ..... electron?
  41. short physics question

    What is the significance of the fact that both the horizontal force and motion are both forwards?
  42. physics

    A football is kicked with an initial velocity v=9i+12j. Find the speed in (m/s) of the ball after 2.4s A) 9.2 B) 10.8 C) 12 D) 15
  43. physics

    What is the gravitational potential energy of a ball with a weight of 72 N when it is sitting on a shelf 1.4 m above the floor?
  44. physics

    Consider a particle with initial velocity that has magnitude 12.0 m/s and is directed 60.0 degrees above the negative x axis.
  45. physics

    find the maximum voltage that can be applied to a 8 kohm resistor rated 0.50 Watt?
  46. physics

    What are the dangers associated with electricity in your home? What can be done to limit or prevent the possibilities of dying or getting hurt?
  47. physics

    Can an adult male be rescued from a fall by tying a rope to a car's axle?
  48. Physics

    An object is thrown upwards with a speed of 14.0 m/s. How long does it take to reach its maximum height
  49. physics

    if an object is pushed along a rough horizontal surface and moves at a constant velocity, then...
  50. Physics

    The maximum kinetic energy of a mass-spring system in SHM is equal to
  51. physics

    a 1000 kg car with an average power of 100 kw accelerates from 0 to 50 m/s. how long does it take to accomplish this
  52. physics

    The three vectors in the figure below have magnitudes a = 2.45 m, b = 3.15 m, and c = 15.0 m and angle θ = 36.5° find the x and y component of vector a
  53. Physics

    how high does a stone rise if it is initially thrown at a rate of 15m/sec
  54. physics

    A stone is dropped from a ledge 45m high. What will its speed on reaching the Earth be?
  55. Physics

    A car is traveling North. In which direction are the wheels turning. This is under the torque chapter
  56. Physics

    The speed of a train increased from 20 mi/hr to 30 mi/hr in a distance of 500 ft. Calculate the average acceleration in ft/s2
  57. physics

    a body travels 200 cm in the first two second and 220 cm in the next 4 seconds.what will be the velocity at the seventh second from the start.
  58. physics

    In the ideal case of zero resistance, a ball rolling on a level surface will accelerate
  59. physics

    The three vectors in the figure below have magnitudes a = 2.45 m, b = 3.15 m, and c = 15.0 m and angle θ = 36.5° find x component of vector a
  60. Physics

    the mass of an airplane is 1.81x10^5 kg. if the gravitational potential energy is 3.78 x 10^7 J, how high did it fly?
  61. physics

    calculate the impulse necessary to stop a 1500 kg car travelling at 90km/hour
  62. College physics

    To what temperature will 7700 J of heat raise 3.0 kg of water that is initially at 10.0 degrees C?
  63. physics

    Devise a method for measuring the coefficient of friction between two surfaces using an inclined plane
  64. physics

    if a bus travels north with a constant velocity of3m/s, what is the displacement after 15 seconds?
  65. Physics

    Find the force necessary to stop a 900 kg jetta traveling at +25 m/s in a time of 5.0 seconds.
  66. physics

    What is the downward force on a ball with a mass of 7.5 x 10^-1 kg thrown in the air due to gravity?
  67. Physics

    If you are driving 100km/h along a straight road and you look to the side for 1.9s , how far do you travel during this inattentive period?
  68. physics

    If you are driving 100 along a straight road and you look to the side for 1.9 , how far do you travel during this inattentive period?
  69. Physics

    What is the instantaneous speed in m/s at the 10 s mark for a car that accelerates at 3 m/s(squared) from a position of rest?
  70. physics

    The equation y=5sin(3x-4)where y is in millimeters x is in metres and t is in seconds,represents a wave motion
  71. Physics

    Find the longest wavelength by resonating air in 20 cm tube which is opened both ends
  72. physics

    How long would it take for a stone to fall 250m traveling at a speed of 10m/s squared?
  73. physics

    the value of acceleration due to gravity is not equal to 10m,give reasons to support
  74. physics

    how much power require to pull the water from horizontal distance about 100 feet ?
  75. Physics

    What is the acceleration experienced by the tip of the 1.5 cm-long sweep second hand on your wrist watch?
  76. physics

    what is the force of gravity on a mass of o.5kg hanging by a string in a beaker of water
  77. physics

    A proton is suspended at rest in a uniform field E.Take into account gravity and determine E.
  78. physics

    What is the magnitude of the acceleration of anelectron in a 2200 N/C electric field?I want the solution to this problem.
  79. physics

    An object is dropped onto the moon (gm = 5 ft/sec2). How long does it take to fall from an elevation of 250 ft.?
  80. physics

    how much work is needed to stop a 20g bullet moving with a speed of 150 ms-1
  81. physics

    when looking at a window, you see two reflected images slightly displaced from eachother. Why/ Is it because glass is more dense.
  82. physics

    Things around you are emitting infrared radiation that includes the wavelength 1.44 10-5 m. What is the energy of the photons?
  83. Physics

    A 2000 kg starts from rest and gains a velocity of 20 m/s in 5 s. What force wad applied on it?
  84. Physics

    Emily rides her horse 48 km in 3 hours.What is her average speed in kilometers per hour?
  85. physics

    What is the resistance of a 40 watt light bulb if it is it to full brilliance by a current of .33amps?
  86. Physics

    coin and a piece of glass are both heated to 60 degrees celsius which will be warmer when you touch it ?
  87. Physics

    The distance between any two points in a thermometer is 10cm.mercury level is 13 cm .temperature in Celsius?
  88. Physics

    A car is traveling North. In which direction are the wheels turning. This is under the torque chapter
  89. physics

    5. What is the electric potential at the center of the square shown in the figure below? Assume that q1 = 1 x 10-8 C, q2 = -2 x 10-8 C, q3 = 3 x 10-8 C, q4 = 2 x 10-8 C and d = 1 meter.
  90. Physics

    What is electric field required at the tip of sharp needle to ionize air?
  91. Physics 1

    What torque is needed to accelerate a 70Kg disk with a 20 cm radius from rest to 10 rad/s?
  92. Physics

    A ball is thrown vertically and reaches a height of 25m. What was it's initial velocity?
  93. Physics

    a racing car has a uniform acceleration of 4 m/s2 What distance will it cover in 10secs after its start
  94. Physics

    A truck covers 40.0 m in 9.40 s while smoothly slowing down to final speed 2.35 m/s. Find its accelerations
  95. physics

    what causes an object to experience an artificial gravitational acceleration in a rotating space station
  96. physics

    how much work can a 50.0kg wreckin ball traveling at 5.00m/s do when striking a building
  97. Physics

    what is magnitude of the centripetal if the tangential speed of the car is 2.0m/s and the radius of the wheel is 83m
  98. physics

    what is the source of error occur in experiment Standing Waves (tuning fork)?
  99. Physics

    coin and a piece of glass are both heated to 60 degrees celsius which will be warmer when you touch it ?
  100. Quick Physics Question

    Are both linear and angular momentum conserved in static equilibrium ?