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A turntable accelerates from rest up to 75rpm in 11s. What is the average angular acceleration? How many revolutions did the turntable make during that 30s?
A hockey puck leaves a player's stick with a speed of 8.00m/s and slides 37.0m before coming to rest. Find the coefficient of friction between the puck and the ice
two parallel plates have charges of 6.00 x 10-4c and -6.00 x 10-4c respectively.a. what is the electric field between
You apply a constant force F? =(?68.0N)i^+(36.0N)j^ to a 400kg car as the car travels 47.0m in a direction, How much work does the force you apply do on the car
A 20 kilogram sled is pulled along a frictionless horizontal surface by a 150 Newton force acting at angle 37o above the horizontal. Determine the upward force exerted on the sled by the ground
A body is traveling at 5.00 m/s along the positive direction of an x-axis. No net force acts on the body. What is the speed of the forward part
If the pendulum makes a maximum angle of 5.4? with the vertical, what is the length of the pendulum
A car of mass m is on a frictionless roller coaster track. How hard does the track push on the car at the top of the loop
A 1600 kg car starts from rest at A, coasts 180m through a dip and comes to stop at B after coasting a distance d on level ground. If the rolling resistance is a constant force of 280N, conclude the distance d.
The captain of the spaceship, who is stationed midway between the front and rear of the ship, sends out radio signals to turn on light beacons located at the front and rear of the ship. He observes both beacons to be turned on simultaneously.
A 3.00-kg block starts from rest at the top of a 33.0° incline and slides 2.00 m down the incline in 1.75 s. Find the frictional force acting on the block
a professional skiers initial acceleration on fresh snow is 90 of the acceleration expected on a frictionless inclined
Suppose the 6.0-V battery is replaced by a battery of unknown emf, and an ammeter measures I1 = 1.2 A. Find the other two currents and the emf of the battery
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