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Anarel [89]
3 years ago
10

A photon in a laboratory experiment has an energy of 5 eV. What is the frequency of this photon? (using the idea of the electron

volt)

Physics
1 answer:
andreyandreev [35.5K]3 years ago
7 0
Answer and working shown on photo

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¿Cuál de las siguientes magnitudes es derivada?
Sedaia [141]

Answer:

A. El volumen

B. La densidad.

Explanation:

A derived quantity is defined as one that has to be calculated by using two or more other measurements.

Volume is a derived quantity because it requires one to use different measurements to determine it. For instance, in the case of a cube, the length, width and height of the cube are all needed to calculate volume.

Density is also a derived quantity because it needs both volume and mass for it to be calculated.

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A baseball player throws a baseball straight up into the air, the ball leaving his hand at time t = 0.0 s. The ball reaches maxi
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The ball should take twice as long to return to its original position as it took to reach its maximum height, so it should return to its original position at t=2.8\,\rm s.

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3 years ago
Drag and drop the words into the correct locations to label the layers of the atmosphere, with the lowest layer at the bottom. (
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Answer:

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4 0
3 years ago
Read 2 more answers
Light cannot escape the intense gravitational pull of a _____.
natima [27]
Black hole 
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3 0
3 years ago
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What temperature increase is necessary to increase the power radiated from an object by a factor of 8?
Aleks04 [339]

To solve this problem it is necessary to apply the concepts related to the Power defined from the Stefan-Boltzmann equations.

The power can be determined as:

P = \sigma T^4

Making the relationship for two states we have to

\frac{P_1}{P_2} = \frac{T_1^4}{T_2^4}

Since the final power is 8 times the initial power then

P_2 = 8P_1

Substituting,

\frac{1}{8} = \frac{T_1^4}{T_2^4}

T_2 = T_1 8*(\frac{1}{4})

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The temperature increase would then be subject to

\Delta T = T_2-T_1

\Delta T = 1.68T_1 -T_1

\Delta T = 0.68T_1

The correct option is D, about 68%

7 0
3 years ago
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