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Gravitational fields (A-level only)

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Question 32

A spherical planet has radius $R\,$ and uniform density $h o$ . The gravitational field strength at its surface is $g$ . What is the gravitational field strength at the surface of a second spherical planet of radius $3R\,$ and uniform density $4 h o$ ?

$3 g$

$8 g$

$12 g$

$36 g$

Gravitational fields (A-level only) Questions

A Level
Physics
Gravitational fields (A-level only)