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iVinArrow [24]
3 years ago
6

Which of the following selections completes the following nuclear reaction?

Physics
1 answer:
Monica [59]3 years ago
3 0

Answer:

n (a neutron)

Explanation:

For a chemical element:

- The lower subscript indicates the atomic number (the number of protons)

- The upper subscript indicates the mass number (the sum of protons and neutrons in the nucleus)

In the reaction described in the problem, we see that a gamma photon hits a nucleus of Calcium-40, which has

Z = 20 (20 protons)

A = 40 (40 protons+neutrons)

Which means that the number of neutrons is n =  A - Z = 40 - 20 = 20

After the reaction, we have a nucleus of Calcium-39, which has

Z = 20 (20 protons)

A = 39 (39 protons+neutrons)

Which means that the number of neutrons is n =  A - Z = 40 - 39 = 19

So, the nucleus has lost 1 neutron, which is the particle missing in the reaction.

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What is the internal energy of 2.00 mol of diatomic hydrogen gas (H2) at 35°C?
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As you mentioned, we will use <span>Equipartition Theorem.
</span><span>H2 has 5 degrees of freedom; 3 translations and 2 rotation
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3 years ago
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infrared radiation from young stars can pass through the heavy dust clouds surrounding them, allowing astronomers here on earth
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The wavelength of the infrared radiation is  λ = 3.174×10^{-5}m.

<h3>What is infrared radiation?</h3>

An infrared telescope is tuned to detect infrared radiation with a frequency of 9.45 THz.

We know that,

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The term "infrared radiation" (IR) refers to a part of the electromagnetic radiation spectrum with wavelengths between about 700 nanometers (nm) and one millimeter (mm). Longer than visible light waves but shorter than radio waves are infrared waves.

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To learn more about infrared radiation from the given link:

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A mass of .1539 kg moves down a 5 meter ramp in 2 seconds. What
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Answer:

Velocity=2.5m/s

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KE=4809.375J

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3 years ago
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