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# Gravitational Field: New Planet

APPH12-SCE6HB

A new planet is discovered! Galileonia (named to honor Galileo Galilei) is an extremely dense planet with a mass that is double Earth's mass and a radius equal to one-third Earth's radius.

What is the acceleration due to gravity near the surface of Galileonia?

The mass of Earth ($m_E$) is $5.972\times10^{24}\text{ kg}$ and Earth's radius ($r_E$) is $6.371\times10^6\text{ m}$.

A

$58.9\text{ m/s$^2$}$

B

$177\text{ m/s$^2$}$

C

$58.9\text{ N/kg}$

D

$177\text{ N/kg}$