A ball is thrown upward with an initial speed of 18 m/s. How long does it take for the ball to return to the ground? (Assume no air resistance.)

A cyclist starts with an initial speed of 15 m/s and slows down at a constant rate of −0.5 m/s2-0.5 \, \text{m/s}^2. Calculate the cyclist’s displacement after the first 8 seconds and after the first 30 seconds once the deceleration begins.

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

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 50 kg crate is pushed along a flat surface, increasing its speed from 2 m/s to 10 m/s in 5 seconds. Calculate the force applied to the crate during this time.

Suppose one interior angle of a regular polygon measures 160°.  How many sides does the polygon have?

Return piping is connected to a centrifugal pump at the ___.

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

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 ___.