physics please HELP !

74,760 results, page 53
  1. physics dimension

    write down the dimensions of moment of inertia and surface tension coefficient.
  2. physics

    Calculate the distance Michael will travel if he maintain an average speed of 9.4 m/s for 2.2 seconds.
  3. AP Physics

    If you are driving 116 km/h along a straight road and you look to the side for 1.0 s, how far do you travel during this inattentive period?
  4. physics

    Your friend of mass 80 kg can just barely float in freshwater.Calculate her approximate volume.
  5. Physics

    The longest and shortests wavelengths of the Lyman series of singly ionized Helium
  6. physics

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

    calculate the kinetic energy of a body of mass 2kg moving with a velocity of 0.1m/s.
  8. physics

    Two asteroids, each with a mass of 6 million kilograms are attracted gravitationally with a force of 0.75 N. How far apart are their centers?
  9. Physics

    When you jump vertically 0.86 meters above the ground, what is your acceleration when you reach your highest point?
  10. physics

    in joule thomson effect,why the temperature of inversion leads to negative sign?
  11. Physics

    Leroy, who has a mass of 72 kg, is skateboarding at 5.9 m/s when he smacks into a brick wall and comes to a dead stop in 0.2 s.
  12. physics

    a 27,000kb freight train starting at 12m/s then speeds up to 45 m/s in 35 seconds. what is the acceleration?
  13. physics

    Find the intensity level 10m from a 0.24 watt source of sound energy?
  14. Physics

    The electric field at the surface of a uniformly charged sphere of radius 6.0cm is 90 kN/c .
  15. Physics

    An object accelerates uniformly from rest and covers 8m in 2 seconds. What is the distance covered in the third second?
  16. Physics

    Calculate the hang time of an athlete who jumps a vertical distance of 0.75 meter.

    how far will a 1000kg car travel in 10 sec if it is accelerated from rest by a force of 5000N
  18. physics

    An electron and a proton that are placed in an electrical field both accelerate equally. True or False?
  19. physics

    the speed of the train increased from 15 mi/hr to 25 mi/hr in distance of 500 ft. calculate the average acceleration in ft/s^2
  20. Physics

    As a rocket accelerates upward, its thrust remains constant but its acceleration increases. what is the cause of this?
  21. science/physics

    What acceleration will you give to a 25.8 kg box if you push it horizontally with a net force of 89.6 N?
  22. physics

    A wheels is turned at prequency at 2.0 revelation per second and then is allow to come to rest. If it those so in 30sec ? How far did it turn in aprocess
  23. physics

    Find the final speed of the train assuming no friction. Answer in units of m/s
  24. physics

    What is the pressure inside a 33.1 L container holding 109.1 kg of argon gas at 399 K?
  25. physics

    Calculate the distance Michael will travel if he maintain an average speed of 9.4 m/s for 2.2 seconds
  26. Physics

    A cable lifts a 1060-kg elevator at a constant velocity for a distance of 39 m. What is the work done by each of the following?
  27. physics

    if the resultant of 2 equal force inclint to each other at 60° is 8root3N. Find the component forces?
  28. physics

    Calculate the total force of the atmosphere acting on the top of a table that measures 1.9 m by 2.3 m.
  29. Physics

    The minimum distance between particles in a wave that have the same displacement and are moving in the same direction is called?
  30. Physics

    Make an analogy between heat capacity and density. Describe which quantities correspond to one another. Thanks!
  31. Physics

    When striking, the pike, a predatory fish, can accelerate from rest to a speed of 3.6 m/s in 0.11 s . Distance?
  32. College Physics

    What is the work required to move a proton 1 cm along the 7 volt equipotential line?
  33. physics

    Can you find the pressure exerted on the floor by the heel if it has an are of 1.50 cm^2 and the woman's mass is 55kg?
  34. Intergated chemistry/physics

    What is the speed (in m/s) of an object that has a mass of 2.5 kilogram and a momentum of 1,000 kg m/s?
  35. Physics Help!!

    Comparing Einstein's and Newton's theories of gravitation, can the correspondence principle be applied? and Why or Why not? a)Yes b)No
  36. physics

    Results for: In An Ideal Transformer, The Voltage And Current Are 220V,2A And Those In Secondry Are 2000V, IA. The Value Of I Is?
  37. physics dimensions

    the displacement of a particles is given by S=A+Bt+Ct^2.deduce the values of the constant A,B,and C appearing in the equation
  38. physics

    A force of 3000 N is applied to a 1500-kg car at rest. (a) what is its acceleration? (b) what will its velocity be 5 s later?
  39. Physics

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

    what is the maximum downward accelaration you can give your hand in m/s^2 i was thinking 10 due to gravity
  41. physics

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

    Wind gusts create ripples on the ocean that have a wavelength of 5.00 cm and propagate at 2.00 m/s. What is their frequency?
  43. physics

    How much work is needed to lift a 400kg engine upward 1.5 meters out of a car?
  44. physics science

    The photoelectric effect occurs only when the incident light has more than a entain minimum
  45. Physics

    The time at which it took the arrow to reach the bulls eye is .6 seconds and it will land 1.8m under the bullseye
  46. Physics

    How far does a plane fly in 15 s while its velocity is changing from 145 m/s to 75 m/s at a uniform rate of acceleration?
  47. Physics

    I want to become an astonomer or study astrophysics but I didnt do maths a level can I still do it? Is there any way you can help me or provide aN alternative
  48. physics

    a plane stops from 250 mph in 25 seconds. Calculate the planes acceleration
  49. physics

    A jet travels at 490 m/s. How long does it take to travel 227m? Answer in units of s
  50. physics

    What is the force of gravity between two 832 kg cars separated by a distance of 29.35 m on an interstate highway?
  51. Physics

    If train travelling 72kmph is to be brought to rest distance of 200m then its retardation should be
  52. physics

    calculate angular momentum and rotational kinetic energy of earth about its own axis
  53. physics

    a bomb of mass 5 kg explodes in to two equel fragments. At what angle these fragment fly apart ?
  54. Physics

    A cheeta can run with a speed of 29 m/s. Determine the distance travelled by a running cheetah in 8.6 s. D= 29/8.6 = 3.3s
  55. General Physics I

    What is the spring constant of a 129N object the vibrates at a period of 4.98s?
  56. physics

    To the nearest tenth of a Joule, what is its maximum kinetic energy of the pendulum in problem 2?
  57. Physics

    A car of 900kg accelerates uniformly from rest to a speed of 30 m/s in 15 seconds.what is its power?
  58. 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?
  59. physics

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

    A car travels in a straight line for 3.7h at a constant speed of 63 km/h. What is the acceleration? Answer in m/s^2
  61. Physics

    A polar satellite is launched at 850km above earth. Find orbital speed.
  62. physics

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

    Starting from the constant-acceleration kinematic equations, write a formula that gives xf in terms of t, xi, vf, and a.
  64. Physics

    A ball is thrown straight up at 24.0 m/s. Ignore the effects of air resistance in your calculations.After 2.00 s?
  65. physics

    How much work is needed to lift a 400kg engine upward 1.5 meters out of a car?
  66. Physics

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

    How much does it cost to operate a 23-W porch light for 24 h if electric energy costs 8¢/kWh?
  68. physics

    If motion of a particle of mass (m) is given by y=ut+1/2gt^2 (square).find force acting on it
  69. physics

    I need to know the resistivity of german silver wire. I've looked at a few Google sources and I've seen several different results. Anyone know which value I should use?
  70. Physics

    Find the velocity of microwaves having wavelength of 0.75m and frequency 2.75X10^10hz
  71. physics

    the two crates 40-kg and 60-kg are to be accelerated upward to a ship at the rate of 0.30-m/s2 determine the tension in each rope ?
  72. Physics

    consider the circuit in the figure. find the current in the 13 ohm resistor. Answer in units of A
  73. physics

    What is the force a rock exerts if it's mass is 36,000 kg and the acceleration due to Gravity is 9.8 m/s2
  74. Physics

    A bicycle with tires .064 m in diameter travels 8.1 km. 1. How many revolutions do the wheels make?
  75. Physics

    A 1.25kg book in space has a weight of 8.35N. What is the value of the gravitational field at that location ?
  76. Physics 11

    A girl stands 2.5 m infront of a plane mirror. If she sees someone else 2.0 m behind her, how far is she from the image of that person?
  77. Physics

    What is the circular force of a 150 g yoyo swung around on a 1.00 m string at a velocity of 5.0 m/s (in Newtons)?
  78. 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.
  79. physics

    Find the electric flux through each surface. (Use any variable or symbol stated above along with the following as necessary: ε0.)
  80. physics

    A 2.40- bullet embeds itself in a 1.20- block, which is attached to a spring of force constant 770 .
  81. physics PLEASE HELP!

    what are three possible thicknesses that a soap film should be to transmit yellow light ? (Lambda=590nm)
  82. Physics

    How much is needed to melt an ice cube, 3 centimeters on each side at 0 degree celcius?
  83. physics

    Explain the changes in frequency with respect to changes in mass, length tension on sonometer bridge.
  84. physics

    How much work is needed to lift a 400kg engine upward 1.5 meters out of a car?
  85. physics

    A car has a velocity of 25m and accelerates uniformly to 45m/s in 10seconds.what is the acceleration?
  86. physics

    what is the temperature increase of 6.4 kg of water when it is heated by a 7.7*10 square? (cp=4186j/kg*degrees celsius)
  87. Physics

    An electric kettle has a power of 1.2kw. How long will it take to heat 3 kg of water to the from 20¡ãC to 100¡ãC?
  88. physics

    Estimate the magnitude of the electric field in a cell membrane with a thickness of 8nm
  89. physics

    two charged objects carry a negative charge of 2*10c. calculate their distance apart
  90. physics 101

    A 72.9 kg man is standing on a frictionless ice surface when he throws a 1.6 kg book at 11 m/s.
  91. physics

    A meteoroid is speeding through the atmosphere, traveling east at 15.5 km/s while descending at a rate of 10.6 km/s. What is its speed, in km/s?
  92. physics

    A 1.25-kg book in space has a weight of 8.35 N. What is the value of the gravitational field at that location? GIVEN: m = 1.25 kg W = 8.35 N Therefore, they want the acceleration. Would I use this equation g = Fg/m?
  93. Science physics

    How would the voltage output be affected if the armature is made to spin faster?
  94. Physics

    If an 80-kg sprinter can accelerate from a standing start to a speed of 10 m/s in 3 s, what average power is generated?
  95. physics

    How far will a car moving at 50 miles an hour travel in the time it takes to sneeze?
  96. 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?
  97. Integrated Physics and Chemistry

    The ____ motion of a star can be determined by studying its spectrum
  98. physics

  99. Physics

    Two positive charge of 12cand 8c are 10cm apart each other. The work done in bringing them 4cm closer is
  100. physics

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