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Lyrx [107]
3 years ago
10

The soldiers are issued (infrared) goggles to help them see in the dark.

Chemistry
2 answers:
Nostrana [21]2 years ago
7 0

Option B: Creating light by radiating heat.

Even under very dark conditions, there is little bit of light present. Some of it can not be visible to naked eyes as it may be infrared. Infrared goggles are used to collect the available light and amplify it to see it in the dark. Every hot object including human body, emit heat in the form of IR light, using thermal capturing techniques, infrared goggles capture this infrared light making the object visible in dark.

Therefore, creation of light by radiating heat helps the soldiers to see in the dark.


gregori [183]2 years ago
6 0
"outside visible spectrum" would be the right way to define the power of the goggles provided to the soldiers to see at night. The correct option among all the options that are given in the question is the first option or option "A". I hope the answer comes to your great help.
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What is the purpose of finding oxidation states in the half-reaction method for balancing equations?
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B. To Identify the half reactions for the equation

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Calculate the number of moles of KOH in 6.70 mL of a 0.480 M KOH solution. (Enter your answer in scientific notation.)
andrew-mc [135]

Answer:

3.2×10^-3 mol

Explanation:

The equation for molarity is M= n/L. Where "M" is Molarity, "n" is the number of moles of solute, and "L" is the total liters in solution.

The question gives you the volume in mL, so to convert "mL" to "L" you need to divide by 1000. (6.70mL/ 1000L)= 0.0067L.

Now you can plug the numbers into the equation. 0.480M= n/ 0.0067L), multiply (0.480M×0.0067L)= 0.003216 mol. The scientific notation is 3.2×10^-3, 10^-3 because you move the decimal back three times and 3.2 because there are 2 sig figs.

5 0
2 years ago
Which of the following results in the release of nuclear energy?
Pepsi [2]

c.Both the breaking of nuclear bonds and the forming of nuclear bonds.

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Learn more:

Nuclear decay brainly.com/question/4207569

#learnwithBrainly

3 0
2 years ago
(a) what is the approximate ductility (%el) of a brass that has a yield strength of 230 mpa (33360 psi)?
ss7ja [257]

Based on the calculations, the approximate ductility (%el) of this brass is equal to 2.3%.

<u>Given the following data:</u>

  • Yield strength = 230 mpa (33360 psi).

<h3>What is ductility?</h3>

Ductility can be defined as an important property of a material which determines its ability to become elongated due to the application of stress.

Mathematically, the ductility of a material can be expressed as percentage elongation in length:

\% el = \frac{\Delta L}{L_i} =\frac{L_f - L_i}{L_i}

<u>Where:</u>

  • L_i is the original length.
  • L_f is the final length.
  • \Delta L is the yield strength.

For this exercise, let us assume the original length of this brass is equal to 100 meters.

Substituting the parameters into the formula, we have;

\% el = \frac{230}{100}

Ductility = 2.3%.

Read more on ductility here: brainly.com/question/828860

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