How much heat does it take to raise the temperature of 9.0 kg of wood from 12c to 97c? the specific heat of wood is 1.68 kj/(kgc). use q = mc(tf - ti). a. 760 kj b. 1300 kj c. 180 kj d. 1500 kj

When objects are charged by they do not need to touch each other. a. friction b. induction c. conduction d. all of these

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.)

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.