Imagine that the Earth is orbiting a white dwarf star, whose surface temperature is 20000 K. How large would this white dwarf have to be to produce the same luminosity as our Sun?  (Express your answer in solar radii and in kilometers)

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A:   The orientation of geographic features on the map is inferred by the arrow present in the map.  

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A:   The geologic time scale is significant tool in explaining the history of the Earth. It is a stand...

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A:   Based on the color elevation interpretation from the question and also Google earth image of the s...

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Q: (This exercise is from Physical Geology by Steven Earle and is used under a CC BY 4.0 license.) The ...

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Q: The question I would like assistance with is posted below:

A: Calculate the radius of the earth: R = Diameter2 = 7927 mi2 = 3963.5 miles  

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Q: Which direction were the glacial lobes moving during the last ice age?

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