- #1

cougarsoccer

- 12

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## Homework Statement

The planet Uranus has a mass about 14 times the Earth's mass, and its radius is equal to about 3.7 Earth radii. A)By setting up ratios with the corresponding Earth values, find the free-fall acceleration at the cloud tops of Uranus. B)Ignoring the rotation of the planet, find the minimum escape speed from Uranus.

## The Attempt at a Solution

I'm kinda clueless as to where to start by i did set up the ratios that it asks to do. Mearth=5.97*10^24kg and Muranus=83.58*10^24kg. and i just set up the ratio of Mearth/Muranus without reducing anything. and for the radius, i have Rearth=6.38*10^6m and Ruranus=23.606*10^6m with setting up the ratio the same way. i think i just need a hint to get started and a clue to which equation these ratios would be used in