# Physics

On a beautiful baseball day with air temperature of 200 C, a pitcher throws a 0.142 kg baseball at 51 m/s towards home plate. As it travels 19.4 m, the ball slows down to a speed of 36 m/s because of air resistance. Calculate the change in the temperature of the air through which the ball passes. For air M= 28.9 g/mol and Cp =7R/2. Hint: Assume the change in temperature happens only for a cylinder of air 19.4 m in length and radius of 3.7 cm. Assume that the energy loss of the ball due to its change in KE and is all absorbed by the air

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