Which stage of a stars life cycle represents a time of converting hydrogen to helium in the core. a. red giant b. main sequence c. white dwarf

5points ! is potential chemical energy always transformed into kinetic

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While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an am radio station, radio waves from an fm radio station, and microwaves from an antenna of a communications system. rank these type of waves in terms of increasing photon energy.