Question

PLS HELP URGENT A moon orbits a planet as shown above.

The moon has a mass 0.66 x 1022 kg and the gravitational field strength at distance R is 0.0012 N/kg. What is the magnitude of the gravitational force exerted by the planet onto the moon while it is in orbit of radius R?
Type your answer in scientific notation with two decimal places. Example: 1.23*10^4

Answer 1

The "magnitude of the gravitational force exerted by the planet onto the moon" (whew!) is just the moon's weight.

Weight = m•g ...... We know both of these

(0.66 x 10^22 kg) • (0.0012 N/kg) =

7.92 x 10^18 Newtons