You are on top of a hospital, 10 stories high, enjoying an outdoor courtyard. each level is 12.0 feet high. your friend who’s in physics says if you drop a penny that it will be going 120m/s when it hits the ground, if you neglect air resistance. reproduce the math to prove them wrong.

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.

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