Help me plz me it due today

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

Ways that industry and agriculture use physical properties to separate substances

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy