Which of the following is an example of kinetic energy? a can of paint sitting at the top of a ladder a dog running down the street a bird perched on a wire a person taking a napwhy are rest of them not examples of kinetic energy?

Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?

What is the measurement of how fast an object moves relative to a reference point?

A200-n force is applied to the foot-operated air pump. the return spring s exerts a 2.6-n·m moment on member oba for this position. determine the corresponding compression force c in the cylinder bd. if the diameter of the piston in the cylinder is 40 mm, estimate the air pressure generated for these conditions. state any assumptions. enter a positive number for the compression force c.