Going down hill with no friction, what happens to kinetic energy?
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Physics, 21.06.2019 19:30
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Note: the following questions are unrelated to the balmer series or the martian. refer to your course notes. a sun-sized star will spend most of its lifetime as a: white dwarf b. red giant c. protostar d. main-sequence star
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Physics, 22.06.2019 05:00
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