Answers: 1
Physics, 22.06.2019 13:30, kuddlebugsmommy
The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?
Answers: 1
Physics, 24.06.2019 00:30, williamsjamon0
Estimate how much solar energy reaches the earth per year (in joule).
Answers: 1
A car has a mass of 4,000 kg. What is the car's weight?...
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