What is the average force of gravity between Earth and the moon?

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SUMMARY

The average force of gravity between Earth and the Moon is calculated to be 2.1 X 10^20 N. This value is derived using the formula F = GmM/r², where G is the gravitational constant, m is the mass of Earth (6.0 X 10^24 kg), M is the mass of the Moon (7.4 X 10^22 kg), and r is the average distance between them (3.8 X 10^8 m). This calculation confirms the significant gravitational interaction between these two celestial bodies.

PREREQUISITES
  • Understanding of Newton's Law of Universal Gravitation
  • Familiarity with the gravitational constant (G = 6.674 × 10^-11 N(m/kg)²)
  • Basic knowledge of mass and distance measurements in physics
  • Ability to perform calculations involving scientific notation
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  • Study the implications of gravitational forces in celestial mechanics
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  • Explore the effects of gravity on satellite orbits around Earth
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Students of physics, astrophysicists, and anyone interested in understanding gravitational interactions between celestial bodies.

snakeboy91
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Show that the average force of gravity between Earth (mass = 6.0 X 10^24kg) and the moon (mass = 7.4X10^22 kg) is 2.1X10^20 N. The average earth-moon distance is 3.8 X 10^8 m
 
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Hi snakeboy, and welcome to PF.

The forum rules require you to show your work before we can help. You are also supposed to use the three headings that appear when you try to post in this section.
 
Are you not aware that F= GmM/r^2?
 

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