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Eva8 [605]
3 years ago
12

A negative charge of -2.5 C and a positive charge of 2.0 C are separated by 100 m. What is the force between the two charges?

Physics
1 answer:
Annette [7]3 years ago
6 0

Explanation:

F = k |q1| |q2| / r^2

k = 9 * 10^9

q1 = - 2.5 C

q2 = 2 C

r = 100

r^2 = (10^2)^2 = 10^4

F = (9*10^9) * ( 2.5 ) ( 2) / ( 100)^2

F = 45* 10^9 / 10^4

F = 45 * 10^9 * 10 ^ -4 = 45 * 10^5 N

F = 45 * 10 ^ 5 N

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Help in this question, please.
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3 years ago
A sound wave enters a new medium where sound travels faster. How does this affect the frequency and wavelength of the sound?
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8 0
3 years ago
An apparatus like the one Cavendish used to find G has large lead balls that are 8.4 kg in mass and small ones that are 0.061 kg
garik1379 [7]

Answer:

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Using formula of gravitational force

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Put the value into the formula

F=\dfrac{6.67259\times10^{-11}\times8.4\times0.061}{(0.057)^2}

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6 0
3 years ago
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faltersainse [42]

Answer:

They are hard.

Explanation:

that’s all i have to say ngl

6 0
4 years ago
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