Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 9, Problem 23P
To determine
The number of revolutions made by the baseball when it is thrown from pitcher to catcher.
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A curve ball is a type of pitch in which the baseball spins on its axis as it heads for home plate. If a curve ball is thrown at 33.2 m/s (74 mph) with a spin rate of 31 rev/s, how many revolutions does it
complete before reaching home plate? Assume that home plate is 18.3 m (60 ft) from the pitching mound and that the baseball travels at a constant velocity.
Express your answer in revolutions per second to three significant figures.
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A jet fighter pilot flying at 300 m/s makes a turn with a radius of 1.5 km. Determine the radial acceleration in g’s experienced by the pilot due to the turn.Also Determine the tangential and total linear acceleration.
How fast (in rpm) must a centrifuge rotate if a particle 7.5 cm from the axis of rotation is to experience an acceleration of 2.0×105 g's?
Express your answer using two significant figures.
Chapter 9 Solutions
Physics for Scientists and Engineers
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