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The moon doesn't revolve around the earth; instead, the earth and moon revolve about a common center of mass, and this causes a periodic wobbling in the earth's location. By making careful measurements of the positions of solar system objects, one can detect this wobbling, and determine that the center around which the earth/moon revolves is 1/81 the distance from the center of the earth to the center of the moon. That means that the moon's mass is 1/81 of that of the earth.
Also one can look at the positions of asteroids. Occasionally, one comes close enough to be significantly close to the moon to have its orbit changed by it. In this situation of two highly unequal masses, the moon is much more massive than the passing asteroid and by using Newton's laws of gravity, once can determine the mass of the moon from the observed deflection of the asteroid's orbit (having taken account of the earth's influence too)
Obviously these calculations are really very difficult, particularly when you realize that they were done before the days of calculators and computers by a French astronomer Charles-Eugene Delaunay who devoted twenty years to a study of the precise orbit of the moon, which led to accurate masses of the earth and moon being known long before humanity launched satellites into space.
look in the related link I will make below for some of the maths.
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Where would the person weigh the least sea level moon mount Everest?
moon duh less mass u wouldn't weigh less but u would be lighter on the moon.Another answer:You would weigh less on the moon.Your mass would not change (mass is not determined by gravity) but your weight would be less (weight is determined by gravity).
What is the Earth and tides are determined by the moon and pull.?
Earth's tides are determined by the moon's ________________ pull.
Is the mass of the moon greater than the mass of the earth?
No. The mass of the moon is a fraction of the earth's mass.
What is the mass of the Moon compared to the mass of the Earth in fractions?
The mass of the moon is about 1/80 that of Earth.
Why are you NOT weightless on the moon?
Because the Moon has mass, a LOT of mass. If something has mass, it will have gravitational attraction. The more mass, the greater the attraction. The moon has ~1/6th the gravity as the Earth.
Why doesnt the moon have as much gravity on it as the earth?
Gravity is determined by the mass of an object. An object with twice the mass will have twice the gravitational pull. Since the moon is much smaller (has a lot less mass) than earth, the gravity on the moon is less than on earth.
Where would the person weigh the least sea level moon mount Everest?
moon duh less mass u wouldn't weigh less but u would be lighter on the moon.Another answer:You would weigh less on the moon.Your mass would not change (mass is not determined by gravity) but your weight would be less (weight is determined by gravity).
How is mass and volume determined in density?
Mass and volume are not determined by density. Rather density is determined by mass and volume
Why does our weight change as we move from earth's surface to the moon's?
Because weight is determined by gravitational pull on your mass. The Moon has less gravitational pull than earth so you will weigh less, even though your mass remains the same.
What is the Earth and tides are determined by the moon and pull.?
Earth's tides are determined by the moon's ________________ pull.
What is the mass of Moon's?
The mass of the Moon is 7.3477 × 1022 kg.AdditionallyIn comparison to Earth, mass of moon = 0.0123 Earths. The Moon's mass is 1/81 of Earth's.
Why is the krypton atomic mass not determined?
The relative atomic mass is 83.798. So where did you get that it is not determined.
What is the moon's mass compared to the earth's mass?
1 earth mass = 81.78 moon mass (rounded)1 moon mass = 0.01223 earth mass = 1.223% of earth mass (rounded)The mass of the moon is only 1.2 percent of the mass of Earth.
Is the mass of the moon greater than the mass of the earth?
No. The mass of the moon is a fraction of the earth's mass.
What will happen to the weight of water in a hermetically sealed jar from earth to the moon?
On Earth it will have a weight determined by the gravimetric pull of the Earth. On the Moon it will have a weight determined by the gravimetric pull of the Moon (roughly 1/6 of its weight on Earth). In flight between the Earth and Moon and assuming that the vehicle is not actively maneuvering it will be weightless. However at all times its Mass and therefore inertial properties will remain constant.
How a star dies is determined by its age shape position in its galaxy mass?
No, how a star dies is determined by its mass.
What are the 3 factors of weight?
The mass of the object, the mass of the object that is attracting it and the distance between their centres of gravity.So your weight on the moon will depend on your mass, the moon's mass and the distance from your centre of gravity to the moon's.The mass of the object, the mass of the object that is attracting it and the distance between their centres of gravity.So your weight on the moon will depend on your mass, the moon's mass and the distance from your centre of gravity to the moon's.The mass of the object, the mass of the object that is attracting it and the distance between their centres of gravity.So your weight on the moon will depend on your mass, the moon's mass and the distance from your centre of gravity to the moon's.The mass of the object, the mass of the object that is attracting it and the distance between their centres of gravity.So your weight on the moon will depend on your mass, the moon's mass and the distance from your centre of gravity to the moon's.
