"A basketball is tossed up into the air, falls freely, and bounces from the wooden floor. From the moment after the player releases it until the ball reaches the top of its bounce, what is the smallest system for which momentum is conserved?"
(a) the ball (b) the ball plus player (c) the ball plus floor (d) the ball plus the Earth (e) momentum is not conserved for any system
(a) Kinetic Energy (K.E.) = (1/2)mv^2 So, by doubling the speed, we are doubling the velocity and that means Kinetic energy will be increased four t...
While a satellite in orbit above the 45th parallel might be more useful, it isn’t possible. The center of a satellite orbit must be the center of the...
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