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navik [9.2K]
3 years ago
5

Which of the following is MOST needed for cosmologists to study the age of the universe? A. Energy levels B. Static C. Size D. D

istance traveled
Physics
2 answers:
dedylja [7]3 years ago
6 0
I think the one that is most needed for cosmologist to study the age of the universe is : D. distance travelled
It is used to determine the Hubble constant  today and extrapolating back in time with the observed value of density parameters

Hope this helps


Trava [24]3 years ago
3 0

The last person is wrong, I just took the test and the correct answer was: B.Static

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The boiling point of water is 91.30 °C on the
Taya2010 [7]

Answer:

196.34 °F

Explanation:

To convert from degrees celsius to degrees fahrenheit, use this equation:

(°C * 9/5) + 32 = °F

So, using this equation:

(91.30 * 9/5) + 32 = °F

196.34 + 32 = °F

°F = 196.34

Hope this helps!

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3 years ago
What is the sl unit for length
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The SI unit of length or distance is the meter.

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A ball is thrown into the air
Alenkinab [10]
And because of gravity it falls back down to the earth.
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3 years ago
. Inside a laser apparatus, the stimulation and relaxation of electrons in atoms causes many photons with the same to be continu
mrs_skeptik [129]

Inside a laser apparatus, the stimulation and relaxation of electrons in atoms cause many photons with the same <u>wavelength </u>to be continuously emitted.

From the questions given, the main objective is to fill in the gaps and add important information where necessary. The missing information is highlighted in bold and underlined.

  1. Inside a laser apparatus, the stimulation and relaxation of electrons in atoms cause many photons with the same <u>wavelength </u>to be continuously emitted.

    2. When these photons are emitted, they travel between two <u>reflective </u>

         surfaces to form the wave that is represented in the simulation.

    3. This wave is the summation of all the photons being introduced with

        every oscillation, and as they continue to travel, the amplitude

        <u>increases. </u>

     4.  This occurs because the photons are emitted in a coherent fashion;

        however, amplitude when the photons overlap in an incoherent

        fashion.

     5.  In a laser device, a small portion of photons are permitted to escape

          (for use in an application). This is emulated in the simulation, by

         settling the Damping to Lots such that amplitude <u>remains relatively </u>

         <u>constant </u>when compared to damping of None. (Damping

         represents the Loss of photons.

       6. The generation of multiple wavelengths is possible in some laser

           producing systems, and the diffraction angle can be <u>varied</u> to allow

          the isolation of different wavelengths.

       7. Finally, when the power of a laser is described, the wave property

          that is being referenced is a function of its frequency and

          <u>amplitude.</u>

Therefore, we can conclude that we've fully understood the concept of emission of photons and wavelength in a laser apparatus.

Learn more about wavelength here:

brainly.com/question/23023103?referrer=searchResults

5 0
3 years ago
Capillary waves travel what than long waves
7nadin3 [17]
Faster than. Hope this helps!!!
6 0
3 years ago
Read 2 more answers
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