An example of an action and reaction is sitting on a chair. your body pushes down on the chair because of the force of _ , and the chair pushes up on your body with equal force.

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

The plum pudding model of the atom states that ?

Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?