Concept explainers
(a)
The ratio of the electrostatic force to thegravitational force between two electrons.
Answer to Problem 30TP
The ratio of the electrostatic force to thegravitational force between two electrons is
Explanation of Solution
Formula used:
The magnitude of the electrostatic force between two electrons isgiven by:
Here:
r is thedistance between them.
The gravitational force between two electrons is given by
Here:
r isdistance between them
Calculation:
The ratio of the electrostatic force to thegravitational force between two electrons is
Conclusion:
The ratio of the electrostatic force to thegravitational force between two electrons is
(b)
Whether or not, the ratio would change if the two electrons are replacedby protons.
The value of new ratio.
Answer to Problem 30TP
Yes.
The ratio of the electrostatic force to thegravitational force between two protons is
Explanation of Solution
Formula used:
The magnitude of the electrostatic force between two protons isgiven by:
Here:
r isthe distance between them.
The gravitational force between the two protons is given by:
Here:
r isthe distance between them.
Calculation:
The ratio of the electrostatic force to the gravitational force between two protons is
Conclusion:
The ratio of the electrostatic force to the gravitational force between two protons is
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Chapter 18 Solutions
College Physics
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