Ahockey puck is set in motion across a frozen pond. if ice friction and air resistance are neglected, the force
required to keep the puck sliding at constant velocity is
a) the weight of the puck divided by the mass of the puck.
b) the mass of the puck multiplied by 9.8 meters per second per second.
c) qual to the weight of the puck.
d) zero newtons.
e) none of these.
Answers: 1
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Asteady current of 1 ais flowing through a conducter calculate the number of electrons that flows through conductor in 1second
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Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?
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Ahockey puck is set in motion across a frozen pond. if ice friction and air resistance are neglected...
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