How many times is light refracted when it passes through a prism

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and

While the change in blank will remain the same during a collision, the force needed to bring an object to a stop can be blank if the time if collision is blank