# Pysics

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Planet X has the same mass as earth, but its radius is only half as big. How does the gravity on this planet compare with the gravity on our planet earth?

• physics -

Hint: g at the surface is proportional to M/R^2.
M is the same for each.

Note the correct spelling of the subject

• Pysics -

:) gremlins inhabit my keyboard!

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