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Calculate the force of gravity that Earth (mass $6.0 \times$ $10^{24} {kg} )$ and the Moon (mass $7.4 \times 10^{22} {kg}$ ) exert on each other. The average Earth-Moon distance is $3.8 \times$ $10^{8} {m} .$

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Physics 101 Mechanics

Chapter 9

Gravity

Applying Newton's Laws

Rotation of Rigid Bodies

Dynamics of Rotational Motion

Equilibrium and Elasticity

Gravitation

Rutgers, The State University of New Jersey

University of Michigan - Ann Arbor

Simon Fraser University

McMaster University

Lectures

03:55

In physics, orbital motion is the motion of an object around another object, which is often a star or planet. Orbital motion is affected by the gravity of the central object, as well as by the resistance of deep space (which is negligible at the distances of most orbits in the Solar System).

02:34

In physics, a rigid body is an object that is not deformed by the stress of external forces. The term "rigid body" is used in the context of classical mechanics, where it refers to a body that has no degrees of freedom and is completely described by its position and the forces applied to it. A rigid body is a special case of a solid body, and is one type of spatial body. The term "rigid body" is also used in the context of continuum mechanics, where it refers to a solid body that is deformed by external forces, but does not change in volume. In continuum mechanics, a rigid body is a continuous body that has no internal degrees of freedom. The term "rigid body" is also used in the context of quantum mechanics, where it refers to a body that cannot be squeezed into a smaller volume without changing its shape.

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Calculate the force of gra…

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The masses of the Moon and…

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The force with which the e…

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The Moon's mass is $7…

01:41

The Moon, whose mass is $7…

03:16

02:54

02:50

The average distance separ…

02:49

The Moon is $3.9 \times 10…

01:22

Gravitational Field The ma…

The gravitational force between art and move is given by the Newton's universal law of gravitation. That is, Ah, additional constant of Mars off the moon times the mass off their art divided by the distance between the inner centers square Just be square waken Substitute the values for gvt 6.67 times 10 to the power minus 11 minus 11 times the mass of the moment we have a 7.4. I'm staying to the power 22 kg. This multiplies with the mask the hurt which his six times 10 to the power 34. Cagey, derided by the distance between their centers, which is ah, three point it constant power eight meter in square. So simplifying this gives us the force between the mass between the art and movies. 2.1 dons tend to the power 20 Newton 22

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