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GREYUIT [131]
3 years ago
11

What is the magnitude of the electric field at a point 0.0055 m from a 0.0025

Physics
1 answer:
allochka39001 [22]3 years ago
7 0

Answer:

Explanation:

The equation for the electric field is

E=\frac{kQ}{r^2} so filling in:

E=\frac{9.00*10^9(.0025)}{(.0055)^2} which in the end gives you

E = 7.4 × 10¹¹, choice A

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What is the minimum speed with which he’d need to run off the edge of the cliff to make it safely to the far side of the river?
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A. Yes, the obtained speed is less than the world record

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Not only is it less, its also a reasonable average speed for a somewhat athletic person. Therefore, the leap is entirely possible.

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3 years ago
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A person is 1.9 m tall. Where should he place the top of a mirror on the wall so he can see the top of his head? Assume his eyes
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