If you wanted to design a spring gun that would shoot a ball across the width of the room while having the ball drop only 2.54 vertically , what would the initial speed of the ball need to be? answer in meters per seconds.

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle

Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)

Suppose astronomers built a 140-meter telescope. how much greater would its light-collecting area be than that of the 10-meter keck telescope? express your answer using two sign