During the 3.9 min a 6.9 A current is set up in a wire, how many (a) coulombs and (b) electrons pass through any cross section of the wire's width

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

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.

Auniform crate c with mass mc is being transported to the left by a forklift with a constant speed v1. what is the magnitude of the angular momentum of the crate about point a, that is, the point of contact between the front tire of the forklift and the ground