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Kelye asked:


I am doing a project and I need to get as many opinions as I can. With the diferent gravitaional force, things like baseball and football aren’t easy. so what sport do you think would be the best sport for earth? Why?

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debbie_75052 asked:


A star is in equilibrium when it radiates at its surface all the energy generated at its core. What happens when it begins to generate more energy than it radiates? Less energy? Explain?

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livinforever asked:


You head out from earth on a spacechip that can hit the speed of light. The first star you pass on the way into the deep Milky Way is the sun. After you pick up some speed on circling the sun, you hit light speed and head out to the blackness of space. What star will you pass by next?

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rshnu asked:


When a large star has spent all its nuclear energy it finally contracts due to its own gravity and becomes a dense small object called a neutron star. Many such stars are found to be rotating with a high speed. How can you account for this high rate of rotation particularly when most stars like our sun are rotating very slowly?

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Jim L asked:


How does luminosity of a star relate to pressure and distance? I am doing dimensional analysis and want to check if my equation is right. Thanks in advance
Yeah i am in astrophysics now. The question actually is: Use dimensional analysis to estimate the light pressure at a ditance d from a star with luminosity L. I have sorta an idea on how to solve this but wanted to check to see if their was a real equation to check with to see if the one I created is similar.

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robertbenscoter asked:


Also, what size star is needed to spport three livable planets?

To explain, I am trying to model a binary star system where one star is larger and supports three livable planets (consecutively) and a smaller star can support livable orbiting bodies. I’m trying to figure out the conditions of a system that would allow for that.

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