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astronomy math question...please help!?
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06-29-2008, 01:27 AM
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 astronomy math question...please help!? If each star has a radius equal to that of the Sun (700,000 km), calculate the volume of 1 star. If the cluster contains 500,000 stars within its 10 parsec radius, calculate the total volume that all 500,000 stars occupy. Divide the volume the stars occupy by the total volume of the cluster to figure out what fraction of the cluster is filled with stars. Is this a large number or a small number? Does the result surprise you, why or why not? *** please help me, my teacher is awful      |
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06-29-2008, 01:27 AM
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| V = 4/3 pi r^3 where r is radius. 1 parsec = 30.857 x 10^12 km The rest is just arithmetic. Find V for the cluster, and V for one star. |
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