If the shafts on the two gears shown in this figure had the same diameter, but were made of different materials, which shaft should be made of the stronger material to avoid breakage? (Hint: The torque exerted on each shaft must be the same as the torque on the gear to which it is attached.)
a. The shaft on the smaller gear since it must compensate for the smaller size of the gear.
b. The torques on the two shafts will always be the same, so it does not matter.
c. The shaft on the larger gear since it will have to withstand a greater torque.
c
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A. 50 m to the right. B. 50 m to the left. C. 30 m to the right. D. 30 m to the left. E. 10 m to the left.
A 5.00 kg ball is traveling at 4.0 m/s and strikes a wall. The ball bounces off the wall with a velocity of 4.0 m/s in the opposite direction. If the contact with the wall by the ball lasts for 0.10 seconds, then the magnitude of the impulse on the ball is
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A planet whose distance from the Sun is 3 AU would have an orbital period of how many Earth-years?
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