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liraira [26]
2 years ago
14

Light travels at 3.0 × 108 m/s in a vacuum. Use the index of refraction for water to determine the speed of light in water. Roun

d your answer to the nearest tenth.
Physics
1 answer:
bixtya [17]2 years ago
3 0

2.3 × 10^8 m/s correct answer

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Someone pls help me with this!
Lina20 [59]

Answer:

<em>F=8.87 N</em>

Explanation:

<u>Coulomb's Law </u>

The electrostatic force between two charged objects is directly proportional to the product of their charges and inversely proportional to the square of the distance between the two objects.

Written as a formula:

\displaystyle F=k\frac{q_1q_2}{d^2}

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d= The distance between the objects  in meters

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q_2=-4.2\cdot 10^{-6}\ c

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d = 0.099 m

Calculate the force:

\displaystyle F=9\cdot 10^9\frac{2.3\cdot 10^{-6}*4.2\cdot 10^{-6}}{0.099^2}

F=8.87 N

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