How are contact forces and field forces different ?

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.)

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Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z