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3 years ago

13

3) Which subatomic particle is NOT found at the center of the atom?

1 answer:

erik [133]3 years ago

3 0

Answer:

electrons

Explanation:

protons and neutrons are found in the nucleus while electrons circle around the nucleus

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3 years ago

What is the energy of an electromagnetic wave with a frequency of 8 x 10^12

omeli [17]

Answer:

Energy, $E=5.3\times 10^{-21}\ J$

Explanation:

It is required to find the energy of an electromagnetic wave with a frequency of $8\times 10^{12}\ Hz$ . The energy of a wave in terms of its frequency is given by :

$E=h\nu$

$\nu$ = frequency of em wave

$E=6.63\times 10^{-34}\times 8\times 10^{12}\\\\E=5.3\times 10^{-21}\ J$

So, the energy of an electromagnetic wave is $5.3\times 10^{-21}\ J$

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3 years ago