A softball player throws a ball from the ground level with an initial velocity of 30 /, 45 ° above the horizontal. Using the formula below, look for what is asked or required. (a) What is the maximum height (ℎ) the ball attained? (b) How many seconds did it take the softball to return to the launching height? and (c) How far away did it land ()?

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.

Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.