After exercise, your heart rate is and you need to slowly bring it back to normal
a. lowered
b. destabilized
c. elevated
d. tripled

Explain why the aperture of the spherical mirror should be small compared to the radius of curvature of the mirror.

An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?

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