10. If a car is moving down a straight highway at a constant speed of 70 miles per hour, it has no net force acting on it. The engine has to keep running to overcome the constant force of friction that is acting on the
car by the road.
a. true
b. false c. not enough information to determine

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.

Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.

Amagnetic field applies forces on: a)static chargesb)moving chargesc)water flow