Hanging Spring When a 0.30 kg mass is suspended from a massless spring, the spring stretches a
distance of 2.0 cm.
Let 2.0 cm be the rest position for the mass-spring system.
The mass is then pulled down an additional distance of 1.5 cm and released.

Calculate the total mechanical energy of the system in SI units.

The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? ab c d

Mark creates a graphic organizer to review his notes aboutelectrical force.which labels belong in the regions marked x and y?

A60-kg box is being pushed a distance of 6.8 m across the floor by a force p with arrow whose magnitude is 162 n. the force p with arrow is parallel to the displacement of the box. the coefficient of kinetic friction is 0.24. determine the work done on the box by each of the four forces that act on the box. be sure to include the proper plus or minus sign for the work done by each force. (the floor is level and horizontal. forces that act on the box: pushing force p, frictional force f, normal force n, and weight mg.)