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A 45 g golf ball is pushed up a 30° ramp. The ball starts from rest and the length of the surface of the ramp is 5 m. The coefficient of kinetic friction between the surface on the ramp and the ball is 0.1. The force ceases when the ball leaves the top of the ramp and the total horizontal distance travelled by the ball after leaving the ramp is 20 m. What was the magnitude of the pushing force (in N)?
A block of mass 2.0 kg is pushed against a vertical wall by a horizontal push (P) of 50.0 N. Find the force AND the direction of the friction
Two speakers, one straight behind the other, are each generating a 285 Hz sound wave. What is the smallest separation distance between the speakers that will produce destructive interference at a listener standing in front of them? Suppose that the s..
A car turns around a level ben of radius 12 m to the center of gravity of the car. What is the fastest speed the car can travel at without tending to overturn
What is eccentricity of the transfer ellipse
what is the rate of heat transfer from the plate to the air? If the free stream velocity if the air is doubled and the pressure are increased to 10 atm, what is the rate of heat transfer.
An astronomical telescope uses an objective power +2.00 D. If the length of the telescope is 52 cm, what is the focal length of the eyepiece
1. an electric motor performs 2000 j of work while lifting a 50 kg mass. how far does it lift the mass?it it takes
Two sinusoidal waves of the same period, with amplitudes of 5.5 and 7.5 mm, travel in the same direction along a stretched string; What is the phase constant of the other wave
A square loop 10 cm on a side consists of 100 turns of wire that experiences a minimum torque of zero and a maximum torque of 0.045 N · m, calculate the magnetic field strength that the loop rests in
It is said that Galileo discovered a basic principle of the pendulum - that the period is independent of the amplitude - by using his pulse to time the period of swinging lamps, How long is the lamp chain
The rope is initially swung around the axis, causing the wood to have a tangential velocity of 4.0 m/s. After one revolution the wood is observed to have a speed of only 2.1 m/s.
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. What is the radius of a chamber
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