Question

Venus is our closest neighbor in the solar system. However, due to a rampant green house...

Venus is our closest neighbor in the solar system. However, due to a rampant green house effect (the atmosphere consists mostly of CO2), its average surface temperature is 864 degrees F. Still, while it may be a while before we can visit Venus, radar-equipped satellites have recently mapped out its surface and measured its radius.

QUESTION 1: The mass of Venus is 4.87×10^24 kg and average radius is 6,052 km. What is the acceleration due to gravity (g) on its surface?

QUESTION 2: The mass of the Sun is 1.99 × 10^30 kg and the average distance between Venus and the Sun is 108 million km. With which velocity does Venus orbit the Sun? Note: G = 6.674 x 10^-11 Nm2/kg2

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