
Concept explainers
a.
To calculate the gravitational force that Moon and Earth exerts upon each other.
a.

Answer to Problem 47PPS
The gravitational force of attraction between Earth and Moon is approximately
Explanation of Solution
Given information:
The given equation is
Mass of Moon (
Mass of Earth (
The distance between Earth and Moon is
Calculation:
To calculate the force substitute the value of variables in the equation
Therefore,
The gravitational force of attraction between Earth and Moon is approximately
b.
To calculate the gravitational force that Sun and Earth exerts upon each other.
b.

Answer to Problem 47PPS
The gravitational force of attraction between Earth and Sun is approximately
Explanation of Solution
Given information:
The given equation is
Mass of Sun (
Mass of Earth (
The distance between Earth and Sun is
Calculation:
To calculate the force substitute the value of variables in the equation
Therefore,
The gravitational force of attraction between Earth and Sun is approximately
c.
To calculate the gravitational force that two iron balls exerts upon each other.
c.

Answer to Problem 47PPS
The gravitational force of attraction between two iron balls is approximately
Explanation of Solution
Given information:
The given equation is
Mass of iron ball (
The distance between two balls is
Calculation:
To calculate the force substitute the value of variables in the equation
Therefore,
The gravitational force of attraction between two iron balls is approximately
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