Which of the following is a machine that converts mechanical energy into electrical energy?
a. compressor
b. generator
c. motor shaft
d. rotor blade

Calculate the heat capacity per object when the total energy is 4 quanta. (think of this in terms of increasing from 3.5 quanta of energy in the system to 4.5 quanta of energy in the system, if that were possible.) c4 = __ j/k/object

When does your body conduct current more readily?

What is the primary force that suspension bridges use cables to hold their spans up? a. tension force b. resistance force c. normal force d. elastic force e. applied force