When you are sitting in a chair, your body exerts a on the chair and the chair exerts the force back.

it can either be:
force
friction
same
different
interacting objects
mass
or push

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates