3 years ago

How do I learn the basics of physics

1 answer:

6 0

Physics is a natural science that involves the study of matter and its motion through space and time, along with related concepts such as energy and force.
Matter is generally considered to be anything that has mass and volume.
Scientific laws and theories express the general truths of nature and the body of knowledge they encompass. These laws of nature are rules that all natural processes appear to follow.

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Willa, the cartoon witch, dusts her crystal ball with her silk scarf, causing it to become charged with 5.0 x 10^ -9 C. Willa th

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Answer:

The distance between the tip of her nose from the center of the crystal ball is 14.3 cm.

Explanation:

Given that,

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It is required to find the distance between the tip of her nose from the center of the crystal ball. The formula of the electric field is given by :

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$r=\sqrt{\dfrac{kq}{E}} \\\\r=\sqrt{\dfrac{9\times 10^9\times 5\times 10^{-9}}{2200}} \\\\r=0.143\ m\\\\r=14.3\ cm$

So, the distance between the tip of her nose from the center of the crystal ball is 14.3 cm.

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