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(i) How much work does the pitcher do on the ball?
(ii) What is the pitcher's power output during the pitch?
(iii) Suppose the ball reaches 42.5 m/s in less than 0.060 s. Is the power produced by the pitcher in this case more than, less than, or the same as the power found in part (b)?
A golf ball is hit on a 7.2m tall hill at 23m/s and 30° above the horizontal, what is its velocity at the peak of its flight
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The 210 A current through a spark plug moves 0.270 mC of charge. How long does the spark last
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