Wet rag against the rim and exerting a radially
A potter's wheel having a radius 0.55 m and a moment of inertia 12.5 kg·m2 is rotating freely at 55 rev/min. The potter can stop the wheel in 6.0 s by pressing a wet rag against the rim and exerting a radially inward force of 68 N
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After falling from rest from a height of 34 m, a 0.45 kg ball rebounds upward, reaching a height of 24 m. If the contact between ball and ground lasted 1.6 ms, what average force was exerted on the ball?
How do you determine cost percentages for food and labor?
A block with mass m = 19.7 kg slides down an inclined plane of slope angle 35.8 deg with a constant velocity. It is then projected up the same plane with an initial speed 1.05 m/s. How far up the incline will the block move before coming to rest?
A binary system consists of two stars that revolve in a circular orbit about a center of mass midway between them. This means that the masses of the two stars are equal. Assume the orbital speed of each star is 285 km/s and the orbital period of e
How far would you have to run, swim, or walk to burn the equivalent of 1 pound of fat? For how much time would you have to do each activity?
After falling from rest from a height of 27 m, a 0.53 kg ball rebounds upward, reaching a height of 17 m. If the contact between ball and ground lasted 1.6 ms, what average force was exerted on the ball?
If it takes Ann 0.79 s to react and apply the brakes, how many meters will she have moved before she begins to slow down?
A cowboy at a dude ranch ?lls a horse trough that is 1 m long, 74 cm wide, and 46 cm deep. He uses a 2.1 cm diameter hose from which water emerges at 2.7 m/s . How long does it take him to ?ll the trough?
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