One consequence of the third law of thermodynamics is that

What happens to light waves from a star as the star moves away from earth?

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

Arod of some material 0.20 m long elongates 0.20 mm on heating from 21 to 120°c. determine the value of the linear coefficient of thermal expansion [in (degrees c)^-1] for this material.