THE PRACTICE STUDIO
Go slowly. Ask why. Make it yours.
PRACTICE / Variation of gravity
Equal density, different planet size
Two uniform spherical planets have the same density. The second has twice the first planet’s radius.
Find the ratio of surface gravity on the second planet to the first.
Organize the givens & assumptions
- ρ₂ = ρ₁
- R₂ = 2R₁
Uniform spherical planets with equal density; compare surface gravity; ignore rotational effects.
- A
- B
- C
- D
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