A ball is released from a cliff that is 320 meters high. Assuming no air resistance:(a) How long does it take for the ball to reach the ground?(b) What is its speed when it strikes the ground?

A rock is launched from a slingshot with an initial speed of 25 m/s.(a) What is the maximum horizontal distance the rock can travel? (Hint: What angle gives max distance?)(b) At what angle should the rock be launched to reach a target located 50 meters away?

While standing in a low tunnel, you raise your arms and push against the ceiling with a force of 100N. Your mass is 70kg. What force does the floor exert on you?

The coefficient of static friction between a wooden block and a glass surface is approximately

While standing in a low tunnel, you raise your arms and push against the ceiling with a force of 100N.  Your mass is 70kg. What force does the ceiling exert on you?

Two sides of a triangle measure 10 inches and 14 inches.a) What are possible lengths for the third side? Give three examples.b) What are not possible lengths for the third side? Give three examples.c) Kathy is not sure whether the third side could be 4 inch. How would you respond?

The water returning to the chiller from the building is normally at a temperature of about ___.

Low-pressure chillers normally use an orifice-type or a float-type ___.

___ compressors used in chillers are large capacity, positive-displacement compressors that have few moving parts.

The maximum amount of natural draft can be ___ with the height of the chimney.