Question

Part A
The mass of the sun is 1.99×1030kg and its distance to the Earth is 1.50×1011m.
What is the gravitational force of the sun on the earth?
Express your answer to three significant figures and include the appropriate units.
Fsone =
Part B
The mass of the moon is 7.36×1022kg and its distance to the Earth is 3.84×108m.
What is the gravitational force of the moon on the earth?
Express your answer to three significant figures and include the appropriate units.
Fmone =
The moon's force is what percent of the sun's force?
Please help I have no idea on what to do

Answer 1

The magnitude of the Gravitational force
\[F=G\frac{mM}{r^2}\]
Where \(m\) and \(M\) are the mass of the two bodies,
\(r\) is the distance between them
and
\(G\) is the universal gravitation constant; \(G=6.67 \times 10^{-11}[\text m^3/\text{kg}/\text s^2]\)