Which does not happen when light travels from water into air? A. Diffracts
B. changes direction
C. refracts
D. speeds up

Rohit is trying to tune an instrument

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?

Which one of the following terms is used to indicate the natural tendency of an object to remain at rest or in motion at a constant speed along a straight line? velocity acceleration equilibrium force inertia