Combining Newton's and Kepler's Laws, We Can Weigh the Sun

question 62

Multiple Choice

Combining Newton's and Kepler's laws, we can weigh the Sun, provided we know:

• A)its density as found by spectroscopy.
• B)its temperature as found by Wien's Law.
• C)the size of the A.U. and exact length of the year.
• D)the Earth's mass and circumference.
• E)the exact timings of the transits of Venus and its diameter.

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