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  archimedes answered your question The vis viva equation is designed to give a velocity for a specific portion of orbit. Why is it that if one uses periapsis for this point one obtains a value greater than the velocity calculated by other means for the same point in orbit? on 01/16/11 at 4:47 pm.

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  Twisted Taco answered your question Using the vis viva equation appears to give inaccurate solutions. v^2=GM(2/r-1/a) The only time the solutions are correct is when a=r??? on 02/11/10 at 5:53 am.

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  archimedes answered your question Why does the vis viva equation, v^2=GM(1/r-2/a) give different velocities than v=SQRT(GM/r), and which is accurate? on 12/28/09 at 11:42 pm.

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  archimedes answered your question Using the vis viva equation appears to give inaccurate solutions. v^2=GM(2/r-1/a) The only time the solutions are correct is when a=r??? on 12/24/09 at 6:37 am.

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  hackerhell900 answered your question Using the vis viva equation appears to give inaccurate solutions. v^2=GM(2/r-1/a) The only time the solutions are correct is when a=r??? on 12/24/09 at 3:13 am.

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  rabid answered your question Excluding wind resistance and such, which angle would yeild a further distance for an arrow fired at 124 mps, 30 degrees or 60 degrees? What are the differences in the parabolic arcs of these trajectories? on 12/18/09 at 5:25 am.

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  archimedes answered your question Excluding wind resistance and such, which angle would yeild a further distance for an arrow fired at 124 mps, 30 degrees or 60 degrees? What are the differences in the parabolic arcs of these trajectories? on 12/15/09 at 2:52 pm.

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  archimedes answered your question Excluding wind resistance and such, which angle would yeild a further distance for an arrow fired at 124 mps, 30 degrees or 60 degrees? What are the differences in the parabolic arcs of these trajectories? on 12/15/09 at 2:38 pm.

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  Jahono answered your question Excluding wind resistance and such, which angle would yeild a further distance for an arrow fired at 124 mps, 30 degrees or 60 degrees? What are the differences in the parabolic arcs of these trajectories? on 12/11/09 at 9:23 am.

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  iwnit answered your question How is the mass of the Sun determined? on 12/09/09 at 11:58 pm.

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  archimedes answered your question If our Sun were a black hole what would it's temperature be? on 12/09/09 at 10:58 pm.

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  archimedes answered your question Calculate the accelleration of the tides? on 12/09/09 at 10:35 pm.

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  Aksafari answered your question How is the mass of the Sun determined? on 12/09/09 at 9:30 pm.

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  archimedes answered your question How is the mass of the Sun determined? on 12/09/09 at 9:25 pm.

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  archimedes answered your question At what speed is the kinetic energy of a particle equal to its rest energy? on 12/09/09 at 9:02 pm.

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  archimedes answered your question Comet tails show us radiation from the Sun is an appreciable force. Calculate the ratio of gravitational and radiation forces on a small particle of density 5000kg/m³. What size will the radiation force exceed the gravitational? on 12/09/09 at 8:01 pm.

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  archimedes answered your question Comet tails show us radiation from the Sun is an appreciable force. Calculate the ratio of gravitational and radiation forces on a small particle of density 5000kg/m³. What size will the radiation force exceed the gravitational? on 12/09/09 at 3:12 pm.

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  archimedes answered your question A 5.5 Mev gamma ray is scattered at 60 degrees from an electron. In Mev, what is the energy of the scattered photon? on 12/09/09 at 2:05 pm.

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  archimedes answered your question At its peak, the Sun's spectrum is 484 nm, what is the surface temperature? on 12/09/09 at 1:06 pm.

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  archimedes answered your question At what speed is the kinetic energy of a particle equal to its rest energy? on 12/09/09 at 12:52 pm.