Math/Physics

206,551 results, page 98

physics

a 10kg block is allowed to slide down a ramp with Mk=0.15. what is the acceleration of the block?

physics

What is the wavelength of the radio waves broadcast by an FM radio station with a frequency of 90.5 MHz?

physics

If we push on a heavy crate to the right and it slidesw, what is the direction of friction on the crate?

physics

If you shout across a canyon and hear an echo 3.6 s later, how wide is the canyon?

Physics

How much work (in J) is done to accelerate a car which has a mass of 3300 kg from a speed of 7 m/s to a speed of 16 m/s?

Physics

Wave amplitude is related to what? (a) wave velocity (b) frequency (c) energy (d) wavelength

Physics - Momentum

Under what circumstances is the change in momentum of a system equal to zero?

physics

An object with an initial velocity of 5 m/s accelerates uniformly for 15 s. (a) If the final velocity is 37 m/s, what is the acceleration?

Physics

What average force is required to stop an 1700 car in 7.0 if the car is traveling at 75 ?

Physics

What average force is required to stop an 1700 kg car in 7.0 s if the car is traveling at 75 km/h?

Physics

How do we prove that the displacement for a trip is equal to the sum of the dispalcements for each leg of the trip?

physics

a basketball player can leap upward 0.5m. what is his initial velocity at the start of the leap?

physics

A ball is kicked at a 37 degree angle, with a velocity of 14.6 m/s. How high and far does the ball go?

physics

What average force is required to stop an 1300 -kg car in 9.0 s if the car is traveling at 90 km/h?

physics

If a stone is thrown vertically up in a moving lorry,where will the stone fall? Explain.

physics !!

How do I calculate the person of error in Centripetal force if it arises from 1% error of the Radius = 5.4 ?

Physics

What average force is required to stop an 1600 -kg car in 8.0 s if the car is traveling at 80 km/h?

physics

A 3.00 kg book is dropped from a height of 2.2 m. The acceleration of gravity is 9.81 m/s2 . a) What is its acceleration? Answer in units of m/s2.

PHYSICS

The boy on the tower (20 m) throws a ball a distance of 60 m. At what speed, in m/s, is the ball thrown?

Physics

Help how to find work If a worker pulls a 10kg bucket up a 25 m well, how much work has he or she done?

physics

a child on a merry go round at 1.5 m is moving ______ times faster than child at .5 m

physics

a projectile is shot up 25 m/s at an angle of 34 degress how high imto the air does the projectile go?

Physics

Which of the following is not a unit of power? a)hp b)J c)W d)J/s I answered d. J/s because its measuring speed and not power. I don't know if its correct or not.

Physics

a book weighs 4 N. When held at rest in your hands, the net force on the book?

physics

a 0.180 kg ball falls 2.5m. How much work does the force of gravity do on the ball?

physics

What provides the force when a car makes a turn? (This is dealing with centripetal force)

physics

in pl spectrum what is the red shift and blue shift and also give the interpretaion

physics

how can we calculate potential energy if we don't have mass but we have force or newtons?

Physics

A tiny spring, with a spring constant of 1.20 N/m, will be stretched to what displacement by a 0.005 0-N force?

physics

Pulling up on a rope, you lift a 4.05-{\rm kg} bucket of water from a well with an acceleration of 2.20 m/s^2. What is the tension in the rope?

physics

Block A (70 N) and block B (21 N) are connected by a massless cord and are at rest. Given ìs = 0.8. What is friction A ?

physics

Block A (60 N) and block B (40 N) are connected by a massless cord and are AT REST. Given ìs = 0.8. The friction on A is : 1. 40 N 2. 0 N 3. 24 N 4. 48 N 5. 20 N 6. 60 N 7. 16 N

Physics

A constant friction force of 10 N acts on a 85 kg skier for 20 s. What is the skier's change in velocity?

Physics

How much heat must be added to 60 g of ice at 0 C to melt the ice completely?

physics

A 40 kg rock is accelerating down a hill at 3 m/s2. What is the net force exerted on the rock

Physics

(c) A force vector with a magnitude of 44 lb that is in the third quadrant with an x component whose magnitude is 38 lb.

Physics

A +3.0 nC charge is at x=0 cm and a -1.0 nC charge is at x=4 cm. At what point or points on the x-axis is the electric potential zero?

physics

a 2.5 kg rifle fires a 20 g bullet at 400 m/s. What is the magnitude of the recoil velocity of the rifle?

physics

a 2.5 kg rifle fires a 20 g bullet at 400 m/s. What is the magnitude of the recoil velocity of the rifle?

Physics

The force on a 0.80 m wire that is perpendicular to Earth's magnetic field is 0.12 N. What is the current in the wire?

Physics

an object moves from the position (1,3,-5) to the position (-1,4,8) during time 8 s. what is the average speed?

Physics

An object moves from the position (1,3,-5) to position (-1,4,8) during time 8 s. what is the average velocity?

physics

why is distance usually on the bertical axis even if the distance is the independent variable?

physics

an object is moving so that its kinetic energy is 83.8 J and the magnitude of its momentum is 27 kg m/s what is the speed of the object

astrology of GEO PHYSICS

3 point 666 point one fifth degree

physics

when a stone is thrown into the air it's surface will be in contact with the surrounding air

Physics

An 8.5 x 10^2 elevator is pulled up at a constant velocity of 1 m/s by a 10 kW motor. Calculate the efficiency of the motor.

physics

What average force is required to stop an 1900 car in 6.0 if the car is traveling at 80 ?

physics

A sound wave has a frequency of 707 Hz in air and a wavelength of 0.50 m. What is the temperature of the air?

physics

An inflated basketball has a gauge pressure of 9.0 lb/in^2. What is the actual pressure inside the ball?

Physics

A car experiences an average acceleration of 5.00 km/hr/s for 3.50 sec. What is the change in velocity of the car?

physics

A force of 1260 N is needed to accelerate a motorcycle at 4 m/s2. What is the mass f the motorcycle and its rider?

physics

A system is provided 50 J of heat and work done on the system is 10 J. What is the change in internal energy

Physics

Why do roller coasters use clothoid loops instead of circular loops?

Physics

A 110 V, 60 Hz AC line is connected to a 6.55 mH coil. Find the current through the coil.

Physics

a car travels at 20km/h for 1.5h, at 30km/h for 2.0h, and at 40kmh for 0.75 h. What is the car average velocity

PHYSICS

Evaluate the following intergal:- çMvdv , with upper limit 'v' and lower limit 'u'

Physics

A centrifuge spins a suspension at 2500 rpm in a radius of 20 cm. What is the acceleration of the suspension?

Physics

A 2.0 kg mass swinging at the end of a 0.5 m string is travelling 3.0 m/s. What is the centripetal force on the mass?

Physics - Converting

Convert each of the following measurements to its equivalent in metres. A. 1.1cm B. 76.2 pm I don't get how to convert :\

Physics

A Styrofoam ball of radius 60 cm falls with a terminal velocity of 8.65 m/s. What is the mass of the ball?

physics

The successive dis- placements are 5.7 m to the north, 6.3 m 45  north of east, and 9.3 m 50 west of south.

physics

It takes 5.50 J of work to stretch a spring 5.90 cm from its unstressed length. What is the spring constant k in N/m?

physics

It takes 9.10 J of work to stretch a spring 5.10 cm from its unstressed length. What is the spring constant k in N/m?

physics

The speed of sound in air at 20 degrees C is 343m/s. This corresponds to a speed of ____mi/hr.

physics

What happens to the size of a hole in a metal plate when the plate is heated / cooled

physics

What happens to the size of a hole in a metal plate when the plate is heated / cooled

PHYSICS PLEASE HELP !!!!!

If a mass lies on an incline, what is the reaction force to the weight of the mass?

Physics

A boy has a mass of 45 kg and is running with a velocity of 8 m/s. Find the boy's kinetic energy.

physics

Brad tosses a rock straight up at 38.4 m/s. What is the rock's velocity after 2.0 seconds?

physics

An object is located 87.6 cm from a concave mirror that has a focal length of 17.0 cm. Where is the image located?

Physics

the coefficient of friction between a 78 kg box and a warehouse floor is .21. what is the friction force?

Physics

What is the fundamental frequency for a 62 cm banjo string if the speed of waves on the string is 470 m/s?

physics

a force of 20 n is applied to a 10 kg mass on a level frictionless surface what is the acceleration of the mass?

Physics

Suppose A=3i-2j+k, B=-i-4j+3k&C is a vector lying along x-axis with the property that A.(B+C)=0. Then find vector C.

Physics

A rocket expels gases at a rate of 1.30 x 10^3 kg/s with a speed of 3.00 x 10^4 m/s. What is the force exerted on the rocket?

physics

A constant friction force of 15 N acts on a 70 kg skier for 20 s. What is the skier's change in velocity?

physics

Which of these two is faster-a plane traveling at 250km/hr and a cat running at 250km/hr

physics

a comet experiences a uniforn acceleration from 60m/s to 183m/s what is the rate of acceleration?

physics

Mr.FIsher can kick a 2 kg football upwards at 20m/s, how high does the football travel?

physics

A capacitor that is connected to a 70.0 V source contains 105.0 µC of charge. What is the capacitor's capacitance?

Physics

How much energy is need to raise 50 kg of warm water from 45 celcius to 80 celcius?

Physics

Charges of -10.8 nC and -24.2 nC are separated by 0.813 m. What is the potential midway between the two charges?

Physics

A parallel plate capacitor has a capacitance of 1.71 nF. There is a charge of 0.809 μC on each plate.

Physics

What is the acceleration of an 0.4m aluminum cube with a density of 2.72 in a beaker of methanol, which has a density of .791?

physics

e relative to the ground. The airplane’s speed relative to the air is 77.9 km/h. Answer in units of km/h

physics

The car has a mass of 1200kg Calculate the kinetic of the car when it travels at a speed of 12 m/s.

Physics

A 0.168kg hockey puck slides at 11.4m/s. what is the work needed to stop the puck?

Physics - grade 11

The speed of light of a plastic is 1.4x10^8. What is the index of refraction in the plastic?

physics

You walk 50 m to the north, then turn 60° to your right and walk another 45 m. How far are you from where you originally started?

physics

You walk 50 m to the north, then turn 60° to your right and walk another 45 m. How far are you from where you originally started?

PHYSICS HELP!!!!!!!

You walk 50 m to the north, then turn 60° to your right and walk another 45 m. How far are you from where you originally started?

physics

Suppose the water waves have a velocity of 1.2m/s and wavelength of 2.4m What is the frequency of the waves?

physics

An electromagnetic wave in a vacuum has a magnetic field with a magnitude of 1.7 x 10^-6 T. What is the intensity S of the wave?

physics

If you shout across a canyon and hear the echo 0.42 s later, how wide is the canyon?

Physics

If the two input voltages to a 2-input summing amplifier are +2 V and +5 V, what is the output voltage?

Physics

If the critical frequency of a low-pass filter is 5 kHz, what is the filter bandwidth?

Physics

If you can see the face of a friend who is underwater, can she also see you? Please explain. Thanks :)

physics

If the critical angle of a liquid is 41.4 degrees find the index of refraction for that liquid

physics

if a person is pushing a cart with a force of 40 Newtons and it accelerates at 0.5 m/s2 , what is the mass of the cart ?

Pages

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
  14. 14
  15. 15
  16. 16
  17. 17
  18. 18
  19. 19
  20. 20
  21. 21
  22. 22
  23. 23
  24. 24
  25. 25
  26. 26
  27. 27
  28. 28
  29. 29
  30. 30
  31. 31
  32. 32
  33. 33
  34. 34
  35. 35
  36. 36
  37. 37
  38. 38
  39. 39
  40. 40
  41. 41
  42. 42
  43. 43
  44. 44
  45. 45
  46. 46
  47. 47
  48. 48
  49. 49
  50. 50
  51. 51
  52. 52
  53. 53
  54. 54
  55. 55
  56. 56
  57. 57
  58. 58
  59. 59
  60. 60
  61. 61
  62. 62
  63. 63
  64. 64
  65. 65
  66. 66
  67. 67
  68. 68
  69. 69
  70. 70
  71. 71
  72. 72
  73. 73
  74. 74
  75. 75
  76. 76
  77. 77
  78. 78
  79. 79
  80. 80
  81. 81
  82. 82
  83. 83
  84. 84
  85. 85
  86. 86
  87. 87
  88. 88
  89. 89
  90. 90
  91. 91
  92. 92
  93. 93
  94. 94
  95. 95
  96. 96
  97. 97
  98. 98
  99. 99
  100. 100