Physics, 18.05.2021 16:10 hjgdk6891

What happens when a wave enters a different material and slows down?

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Physics, 21.06.2019 13:30, anondriap

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Physics, 22.06.2019 03:30, 1074885

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Physics, 22.06.2019 11:30, jessecabrown1

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

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Physics, 22.06.2019 17:50, manou76

Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?