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09.03.2021 •
Physics
Why does my fart smell like cheese?
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Ответ:
um do you eat cheese?
Explanation:
Ответ:
Because it could be something you have eaten, or you stomach has had a bad reaction to something.
Explanation:
Hope this helps!
Kinda?
Ответ:
A) 33.8 N
B) Attractive force (see graph)
C) 158.9 N
Explanation:
A)
The magnitude of the electrostatic force between two electric charges is given by
where
k is the Coulomb's constant
q1, q2 are the magnitudes of the two charges
r is the separation between the charges
Here in this problem, we have:
r = 4 cm = 0.04 m is the separation
Substituting, we find the magnitude of the force:
B)
Find the graph showing the direction of the force in attachment.
The direction of the electrostatic force between two charges is given as follows:
- If the two charges have same sign (++ or --), the force is repulsive
- If the two charges have opposite sign (+-), then the force is attractive
In this problem:
- Charge 1 is negative
- Charge 2 is positive
The two charges have opposite signs: therefore, according to the rules above, the electrostatic force between them is attractive.
C)
When the charges are placed in a medium, the magnitude of the electrostatic force between the two charges increases due to the polarization effect on the medium, and the new force is given by
where:
F is the original electrostatic force in a vacuum
Here in this problem, we have:
F = 33.8 N is the original electrostatic force
Therefore, the new electrostatic force between the charges is
F' = (33.8)(4.7) = 158.9 N