The graph shows the angular velocity and angular acceleration versus time for a rotating body. At which of the following times is the rotation speeding up at the greatest rate? A. t = 1 s B. t = 2 s C. t = 3 s D. t = 4 s E. t = 5 s

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?