A magnifier has a magnification of 8 x. How far from the lens should an object be placed so that it’s virtual image is at the near-point distance of 25 cm?

Which statement correctly describes the relationship between frequency and wavelength?

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

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