A hair dryer is rated at 2200 W. The hair dryer is used for 15 minutes/day at full power, 365day/year. The cost of electrical energy is 9.0 cents/kWh. Calculate the annual cost of the electrical energy the hair dryer uses.

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

What happens when the temperature of a solution increases?

What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles