What is the magnitude of the gravitational force between the Earth and the Moon?

Question

What is the magnitude of the gravitational force between the Earth and the Moon?

Earth Mass, MT=5.98·E 24 kg
Earth Radius, RT= 6.38·E 6 m
Moon Mass, ML=7.35·E 22 kg
Moon Radius, 1.74·E 6 m
Distance between Earth & Moon, d=384000 km=3.85·E 8 m

Answer 1

Its a simple equation-:

G m M / r^2

G is gravitational constant (approx 6.11 x 10^-11)
you have all the other numbers - you just multiply G with the mass of earth & the mass of moon and divide by the distance of the moon away(squared).

Use all SI units when you do the calcualtion i.e. kg and metres

Answer 2

You can use F=G*m1*m2/r*r defined by newton but be careful this is only valid for point masses. If you are calculating the gravitational between earth and moon you should take into account the moment of inertia and then try to calculate the gravitational force.

Answer 3

you ought to use F=G*m1*m2/r*r defined via newton yet be careful it is in simple terms valid for element hundreds. while you're calculating the gravitational between earth and moon you are able to evaluate the 2d of inertia and then attempt to calculate the gravitational tension.