Ceiling fans are often used in homes to increase air circulation. When a ceiling fan is turned on, what type of energy transformation occurs?

The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection

What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34

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.