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3 years ago

6

Atoms are split at power plant to create electricity*

1 answer:

Rudiy273 years ago

8 0

Answer:

B. Nuclear to Electrical

Explanation:

Atoms are split at power plants to create electricity. The energy conversion in this process is from nuclear to electrical energy.

When atoms are split, nuclear energy is released.
Some part of the mass of the atom is converted to energy.
The nuclear energy released is expressed as heat energy.
This energy is used to heat water in boilers when produces steam that are used to drive the movement of turbines.
This in turn generates electricity.

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What physical quantity is a measure of the amount of inertia an object has?

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A non-reflective coating that has a thickness of 198 nm (n = 1.45) is deposited on top of a substrate of glass (n = 1.50). What

spin [16.1K]

Answer:

The wavelength is $\lambda_ 1 = 574.2 nm$

Explanation:

From the question we are told that

The thickness is $t = 198 nm = 198 *10^{-9 }\ m$

The refractive index of the non-reflective coating is $n_m = 1.45$

The refractive index of glass is $n_g = 1.50$

Generally the condition for destructive interference is mathematically represented as

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Where $\thata$ $\theta$ is the angle of refraction which is 0° when the light is strongly transmitted

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at the point n = 1

$\lambda _1 = \frac{2 * 1.45 * 198*10^{-9} * cos (0 )}{1}$

$\lambda_1 = 574.2 *10^{-9}$

$\lambda_1 = 574.2 nm$

at n =2

$\lambda _2 = \frac{\lambda _1 }{2}$

$\lambda _2 = \frac{574.2*10^{-9} }{2}$

$\lambda _2 = 2.87 1 *10^{-9} \ m$

$\lambda _2 = 287. 1 nm$

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4 years ago

A block is balanced on top of a frictionless sphere of radius R. When the block is given a slight nudge it starts to slide down

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Explanation:

Given

Sphere of Radius R

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When block is just about to leave then N=0

therefore

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Also by conserving Energy we get

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here h=vertical distance traveled by block

From diagram

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From 1 and 2

$2(1-\sin \theta )=\sin \theta$

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Thus from this value of h is

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$h=R(1-\frac{2}{3})$

$h=\frac{R}{3}$

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