Abasketball referee tosses the ball straight up for the starting tip-off. at what velocity must a basketball player leave the ground to rise 1.25 m above the floor in an attempt to get the ball? (assume that the player gets the ball at his maximum height.)

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.

Coal contains energy. a. light b. kinetic c. chemical d. mechanical

Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.