Problem Set $2$

Is the following statement about microscopic energy true or false? Why?

The microscopic forms of energy are those a system possesses as a whole with respect to

some outside reference frame.

Determine the specific kinetic energy of a mass whose velocity is $60\frac{m}{s},$ in $k\frac{J}{k}g.$

How much work, in kJ $,$ can a spring whose spring constant is $14k\frac{N}{c}m$ produce after it has

been compressed $3$ cm from its unloaded length?

What the three mechanisms of heat transfer?

A $8-kW$ electric resistance heater in a room is turned on and kept on for $50$ min $.$ What is the

amount of energy transferred to the room by the heater?