If the tennis player serves the ball horizontally (θ = 0) calculate its velocity v if the center of the ball clears the 36-in. net by 7.7 in. also find the distance s from the net to the point where the ball hits the court surface. neglect air resistance and the effect of ball spin.
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The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage
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Suppose astronomers built a 140-meter telescope. how much greater would its light-collecting area be than that of the 10-meter keck telescope? express your answer using two sign
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If the tennis player serves the ball horizontally (θ = 0) calculate its velocity v if the center of...
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