Objects tend to "keep on doing what they're doing" (unless acted upon by an unbalanced force). When your car abruptly stops, the seat belt provides the that brings you from a state of motion to a state of rest.

a. spring force

b. gravity force

c. unbalanced force

d. friction force

John throws .4 kg ball with velocity of 18 m/s. hits .2 kg bottle and bottle flies 25 m/s. how fast is ball traveling after hitting the bottle?

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?