Answered

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880 m/s
mass
moon
orbital radius
A
4.0 x 1020 kg
2.0 x 108m
B
1.5 x 1020 kg 2.0 x 105 m
3.0 x 108 m
A meteoroid fragment is in circular orbit around moon B at a small altitude h above the surface. The altitude h is a very small fraction of the radius of the moon. What is the speed
of the fragment? Note: The constant of universal gravity (G) equals 6.674 x 10-11 N-m²/kg²
O 320 m/s
O 440 m/s
O220 m/s
Data on Two Moons of Planet Q
radius
orbital period
4.0 × 106 s

Sagot :

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