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3 years ago

7

The energy released during a nuclear reaction is a result of

1 answer:

astra-53 [7]3 years ago

8 0

Answer:

the conversion of matter into energy

Explanation:

A nuclear reaction is a reaction in which there is a change in the nuclei of the atoms involved. The two most important examples of nuclear reactions are:

- Nuclear fission: it occurs when a heavy, unstable nucleus breaks apart into two or more lighter nuclei

- Nuclear fusion: it occurs when two lighter nuclei fuse together into a heavier nucleus

In both cases, the total mass of the final products is smaller than the total mass of the initial nuclei: this means that part of the mass of the initial nuclei has been converted into energy, according to Einstein's formula:

$E=\Delta m c^2$

where $\Delta m$ is the variation of mass and c is the speed of light. Since the value of c is very large, we can see from the formula that even a small amount of $\Delta m$ is able to produce a huge amount of energy, and this is a typical feature of any nuclear reaction.

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At what displacement of a sho is the energy half kinetic and half potential? what fraction of the total energy of a sho is kinet

expeople1 [14]

As we know that KE and PE is same at a given position

so we will have as a function of position given as

$KE = \frac{1}{2}m\omega^2(A^2 - x^2)$

also the PE is given as function of position as

$PE = \frac{1}{2}m\omega^2x^2$

now it is given that

KE = PE

now we will have

$\frac{1}{2}m\omega^2(A^2 - x^2) = \frac{1}{2}m\omega^2x^2$

$A^2 - x^2 = x^2$

$2x^2 = A^2$

$x = \frac{A}{\sqrt2}$

so the position is 0.707 times of amplitude when KE and PE will be same

Part b)

KE of SHO at x = A/3

we can use the formula

$KE = \frac{1}{2}m\omega^2(A^2 - x^2)$

now to find the fraction of kinetic energy

$f = \frac{KE}{TE} = \frac{A^2 - x^2}{A^2}$

$f = \frac{A^2 - (\frac{A}{3})^2}{A^2}$

$f_k = \frac{8}{9}$

now since total energy is sum of KE and PE

so fraction of PE at the same position will be

$f_{PE} = 1 - f_k$

$f_{PE} = 1 - (8/9) = 1/9$

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Answer:

I'd imagine fast food is a lot more popular than most countries over there and easier to get hold of.

Explanation:

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