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In a fast-pitch softball game the pitcher is impressive to watch, as she delivers a pitch by rapidly whirling her arm around so that the ball in her hand moves in a circle. In one instance, the radius of the circle is 0.631 m. At one point on this circle, the ball has an angular acceleration of 64.5 rad/s2 and an angular speed of 12.5 rad/s.
(a) Find the magnitude of the total acceleration (centripetal plus tangential) of the ball.
(b) Determine the angle of the total acceleration relative to the radial direction.
The amass of the aluminum cylinder is (207.8±0.1)g. Once the cylinder is turned through the numbers of turns as described in Problem 1, Determine the amount of heat that entered the cylinder
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A particle leaves the origin with an initial velocity of 4.20 m/s in the x direction, and moves with constant acceleration ax = -1.80 m/s2 and ay = 2.30 m/s2. a-How far does the particle move in the x direction before turning around? b-What is the..
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A baseball has a mass of 140 grams and a softball has a mass of 280 grams. In which of the situations would they both have the same momentum.By how much will a bar long of the same material.
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