- #1
basenne
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1. In a certain binary-star system, each star has the a mass of 1.36e30 kg, and they revolve about their center of mass. The distance between them is 1.1e8 km. What is their period of revolution in Earth years?
2.
gravity = centripetal force
(g*m*m)/d^2 = (mv^2)/r
3. I've tried plugging in numbers, tried 1/2 of 1.1e8 for R and 1.1e8 for D(diameter), didn't work. Not quite sure what I'm doing wrong. I know that v^2 becomes (diameter/time)^2 and to solve from there, however, I'm just not sure where to start. (
2.
gravity = centripetal force
(g*m*m)/d^2 = (mv^2)/r
3. I've tried plugging in numbers, tried 1/2 of 1.1e8 for R and 1.1e8 for D(diameter), didn't work. Not quite sure what I'm doing wrong. I know that v^2 becomes (diameter/time)^2 and to solve from there, however, I'm just not sure where to start. (
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