# Physics

posted by .

8) A man on the moon with a mass of 90 kilograms weighs 146 newtons. The radius of the moon is 1.74 x 106 meters, find the mass of the moon.

7.36 x 10^(28) kg
2.4 x 10^(10) kg

7.36 x 10^(22) kg

1.43 x 10^(4) kg
i'm unsure of how to do this as well.

• Physics -

146=GM*90/(1.74E6)^2

M= 146*(1.74E6)^2 /90G

and I get one of the answers.

## Similar Questions

1. ### Physics

mass of star = 3.80 x 1030 kilograms mass of planet = 6.35 x 1024 kilograms mass of moon = 7.63 x 1022 kilograms average distance from star to planet = 1.56 x 1011 meters average distance from planet to moon = 4.26 x 108 meters Use …
2. ### Physics

On July 19, 1969, Apollo II's orbit around the moon was adjusted to an average height of 188 kilometers above the moon's surface. The radius of the moon is 1810 kilometers, and the mass of the moon is 7.3 x 1022 kilograms. a. At what …
3. ### WSU PHY

The Moon causes tides because the gravitational force it exerts differs between the side of the Earth nearest the Moon and that farthest from the Moon. Find the difference in the accelerations toward the Moon of objects on the nearest …
4. ### Physics

The Moon causes tides because the gravitational force it exerts differs between the side of the Earth nearest the Moon and that farthest from the Moon. Find the difference in the accelerations toward the Moon of objects on the nearest …
5. ### physics

Your friend weighs 145 lb. What is her mass in kilograms if she went to the moon where the acceleration of gravity is 1/6 that on earth?
6. ### Science..physics

The moon is the Earth's nearest neighbour in space. The radius of the moon is approximately one quarter of the Earth's radius, and its mass is one eightieth of the Earth's mass. a) Culculate the weight of a man with a mass of 80kg …
7. ### general physics

COMPLETELY STUCK? The period of rotation of the Moon is about 27 days, 8 hrs. The mass of the Moon is 7.35 x 1022 kg, and the radius of the Moon is 1.74 x 106 m. I wish to place a synchronous (period of orbit = period of the Moon’s
8. ### Physics Classical Mechanics

The mean distance from the center of the earth to the center of the moon is rem = 3.84 × 108 m. The mass of the earth is me = 5.98 × 1024 kg and the mass of the moon is mm = 7.34 × 1022 kg. The mean radius of the earth is re = 6.37 …
9. ### science

A person who weighs 600 newtons on Earth would weigh only 100 newtons on the Moon. Which statement best explains why?
10. ### Science Physics

On the surface of the Moon an astronaut has a weight of Fg = 120 N. The radius of the Moon is Rm = 1.74 x 106 m, the gravitational constant is G = 6.67 x 10-11 N m2kg2 and the mass of the Moon is Mm = 7.35 x 1022 kg. Solve numerically …

More Similar Questions