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3 years ago

A book with a mass of 3.3 kg sits on a bookshelf. If it has a gravitational

Physics

1 answer:

erma4kov [3.2K]3 years ago

4 0

<h2><u>AnswEr :</u> </h2>

Given that,

Mass of the Book (M) = 3.3 Kg

Gravitational Potential Energy (P) = 57 J

Acceleration Due to Gravity (g) = 9.8 m/s²

We have to find the height of the shelf

We know that,

$\tt P = MgH$

Putting the values,

$\sf \: 57 = 3.3 \times 9.8 \times h \\ \\ \implies \: \sf \: 57 = 32.34 \times h \\ \\ \implies \: \sf \: h = 1.76 \: m \: (approx)$

<h3>The height of the shelf is 1.76 m </h3>

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A thin soap bubble of index of refraction 1.33 is viewed with light of wavelength 550.0nm and appears very bright. Predict a pos

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Answer:

The possible thickness of the soap bubble = $1.034\times 10^{-7}\ m.$

Explanation:

<u>Given:</u>

Refractive index of the soap bubble, $\mu=1.33.$
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3 years ago

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