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posledela
3 years ago
12

Identify some common fuels

Physics
2 answers:
kozerog [31]3 years ago
4 0
On a worldwide scale, the most common fuels are wood, grass, peat, coal, and animal fats and oils.
schepotkina [342]3 years ago
3 0
<em><u>Coal, Wood, Petroleum, Natural Gas, Kerosene, Diesel, LPG (Liquefied Petroleum Gas), CNG (Compressed Natural Gas), Coke etc. are some commonly used fuels.</u></em>
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Answer:

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An electron emitted in the beta decay of bismuth-210 has a mean kinetic energy of 390 keV. (a) Find the de Broglie wavelength of
Sauron [17]

Explanation:

Given that,

The mean kinetic energy of the emitted electron, E=390\ keV=390\times 10^3\ eV

(a) The relation between the kinetic energy and the De Broglie wavelength is given by :

\lambda=\dfrac{h}{\sqrt{2meE}}

\lambda=\dfrac{6.63\times 10^{-34}}{\sqrt{2\times 9.1\times 10^{-31}\times 1.6\times 10^{-19}\times 390\times 10^3}}

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(b) According to Bragg's law,

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For nickel, d=0.092\times 10^{-9}\ m

\theta=sin^{-1}(\dfrac{\lambda}{2d})

\theta=sin^{-1}(\dfrac{1.96\times 10^{-12}}{2\times 0.092\times 10^{-9}})

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As the angle made is very small, so such an electron is not useful in a Davisson-Germer type scattering experiment.

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3 years ago
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stellarik [79]
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3 0
3 years ago
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Vera_Pavlovna [14]

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3 0
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How can someone, like myself, share roughly 50% of their DNA with a 1st Cousin?
iragen [17]

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Explanation:

hoped that helped!!

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