Asked by Devin
A planet/moon has a mass of 77.89 × 1023 kg and a radius of 7.9 × 106 meters. What is g on the surface to the nearest hundredth of a m/s2?
Once again, not really sure where to go with this. Out of the 10 problems I've only had trouble with this and one other.
Once again, not really sure where to go with this. Out of the 10 problems I've only had trouble with this and one other.
Answers
Answered by
Elena
the gravitational constant
G =6.67•10⁻¹¹ N•m²/kg²,
mg =GmM/R²,
g =G M/R²=
=6.67•10⁻¹¹•77.89•10²³/(7.9•10⁶)²=
=8.32 m/s²
G =6.67•10⁻¹¹ N•m²/kg²,
mg =GmM/R²,
g =G M/R²=
=6.67•10⁻¹¹•77.89•10²³/(7.9•10⁶)²=
=8.32 m/s²