A cheetah is going 61 mph to the East, while an ostrich is going 43 mph also to the East. From the point of view of the cheetah what is the apparent relative velocity of the ostrich as the cheetah passes it? A.3.5 mph, West
B. 82.5 mph, West
C. 82.5 mph, East
D. 18 mph, West

The differences between  a compression wave and a transverse wave?

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

In a system, when potential energy decreases, then entropy also decreases. true false