Find kinetic energy of ball at the highest point of motion

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Q. An outfielder throws a 0.150 kg baseball at a speed of 44.0 m/s and an initial angle of 30.0°. What is the kinetic energy of the ball at the highest point of its motion.

Q. Strictly speaking, as more and more skyscrapers are built on the surface of the Earth, does the day tend to become shorter or longer? And, strictly speaking, does the falling of autumn leaves tend to lengthen or shorten the 24 hour day? What physics principle supports the answers?

Reference no: EM1364326

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