A 50.0-kg child is riding on the edge of a merry-go-round that has a mass of 200 kg, a 3.00-m radius, and is spinning at 30.0 rpm. Consider the merry-go-round to be a solid disk with a rotational inertia of 1/2 MR^2. If the child moves to the center of the merry-go-round, what is the new frequency in rpm

What color of light must blue light mix with to create white light? a. yellow b. white c. blue d. green

If the temperature were raised very high, classically what would we expect the heat capacity per object to be for this one-dimensional system? give a numerical value. chigh t = __ j/k/object (one reason for the discrepancy is that the high-temperature limit assumes that the number of oscillators is large (n > > 1), which is not the case in this tiny system.)

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is