The angle made by an area of a sphere at its centre equal to 2 times the square of its radius is a.. one degree b..two degree c..one revolution d..2 steradian..

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?

Acar traveling at 22 m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration?

Abar magnet cut in half will form a total ofpoles. a)fourb)eightc)two