# Physical Science

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I need some help. I have tried working this problem and can't get it.

What is the mass of the Sun, in kilograms, based on the revolution period and distance from Venus?

• Physical Science -

You can use Newton's form of Kepler's third law to compute the mass of the sun, using the distance and period of any planet. You can find the formula at:

The formula given there uses the velocity of the planet (in m/s), which is the orbit circumference divided by the period.

You should get Msun = abiout 2*10^30 kg

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