O Instructions O Determine g for a planet A new planet has been discovered that has a mass three times that of Earth and a radius that is twice that of Earth. Determine the free fall acceleration on the surface of this planet. Express your answer in the appropriate mks units. 7.35 m/s^2 O Determine the mass of a star A new planet is discovered orbiting a distant star. Observations have confirmed that the planet has a circular orbit with a radius of 28 AU and takes 112 days to orbit the star. Determine the mass of the star. State your answer with appropriate mks units. [NOTE: AU stands for "astronomical unit". It is the average distance between Earth & the Sun. 1 AU = 1.496 × 1011 m.] 2.67e50 kç X [NOTE: Your answer will be quite large and your calculator will display the answer as a power of 10. If, as an example, your answer was 8.54 x 1056, you would type "8.54e56" into the answer box (remember to state your units with your answer).]

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