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marshall27 [118]
3 years ago
13

If radiation normally travels at the speed of light, why does it take longer than 100,000 years for energy from thermonuclear re

actions in the solar core to reach the surface of the Sun?
Chemistry
1 answer:
Stells [14]3 years ago
5 0

Answer:

The photons undergo innumerable collisions and interactions as they travel from atom to atom.

Explanation:

The sun is a massive body in which nuclear reaction takes place. It involves the nuclear fusion of  hydrogen atoms to produce  He atom. The Helium atom has less mass than the combination of the hydrogen atoms. The excess mass is converted to energy.

Electric charge is conserved in nuclear reactions. A positron otherwise called an anti-matter electron hits a close electron and they produce electromagnetic radiation in form of gamma rays.

x-rays are produced from gamma rays are gamma rays lose energy to nearby particles as they move towards the surface of the sun which in turn becomes ultraviolet rays. in the course of the journey to the surface of the sun, photons must have lost enough energy and be converted to visible light which we can see. The whole process happens over a 100,000years.

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When a solid has energy added and turns to a liquid what is it called?
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Melting (solid to liquid)
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Which desribes a step in the process of forming and ionic bond
Brums [2.3K]

Explanation:

A metal atom loses electrons and becomes a positive ion.

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A dose of aspirin of 5.0 mg per kilogram of body weight has been prescribed to reduce the fever of an infant weighing 8.5 pounds
Tanya [424]
<h3><u>Answer</u>;</h3>

19 mg

<h3><u>Explanation</u>;</h3>

dose = 5.0 mg/kg  

weight of infant = 8.5 pounds

Convert 8.5 pounds to kg: 8.5 pounds = 3.86 kg

Therefore;

The dose to give the infant is:  

= (5.0 mg/kg) x (3.86 kg)

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3 years ago
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We can dilute an aqueous solution by adding liquid water to the solution, resulting in a less concentrated solution. Which of th
Neporo4naja [7]

Answer: = C

Explanation:

evaporating some of the water contained in the solution will increase the concentration of the resulting solution, because there will be concomitant increase in the number of moles of the solute left in the solution.

8 0
3 years ago
What’s the answer ?
Romashka-Z-Leto [24]

Answer:

45.3°C

Explanation:

Step 1:

Data obtained from the question.

Initial pressure (P1) = 82KPa

Initial temperature (T1) = 26°C

Final pressure (P2) = 87.3KPa.

Final temperature (T2) =.?

Step 2:

Conversion of celsius temperature to Kelvin temperature.

This is illustrated below:

T(K) = T(°C) + 273

Initial temperature (T1) = 26°C

Initial temperature (T1) = 26°C + 273 = 299K.

Step 3:

Determination of the new temperature of the gas. This can be obtained as follow:

P1/T1 = P2/T2

82/299 = 87.3/T2

Cross multiply to express in linear form

82 x T2 = 299 x 87.3

Divide both side by 82

T2 = (299 x 87.3) /82

T2 = 318.3K

Step 4:

Conversion of 318.3K to celsius temperature. This is illustrated below:

T(°C) = T(K) – 273

T(K) = 318.3K

T(°C) = 318.3 – 273

T(°C) = 45.3°C.

Therefore, the new temperature of the gas in th tire is 45.3°C

6 0
3 years ago
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