A 2-kg girl sits on a carousel 0.5 m away from the axis of rotation. If the centripetal force is 80 N, what is the speed that maintains her circular motion?

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.)

Which object is most likely represented by a dot?

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.