What important temperatures does the celsius scale use for a basis? a) the boiling and freezing point of water b) temperatures on the sun and the moon c) the rang of human body temperatures d) high and low air temperatures

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?

Which of the following best describes the circuit shown below?