Physics, 04.06.2021 21:50 evelin2318
What is the frequency of a photon whose energy is 3.1 x 10^-22 J?
1. 14.7 x 10^11 Hz
2. 1,570 Hz
3. 2.0 x 10^-55 Hz
5. 2.1x 10^-12 Hz
Answers: 2
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When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?
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Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.
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What is the frequency of a photon whose energy is 3.1 x 10^-22 J?
1. 14.7 x 10^11 Hz
2. 1,57...
2. 1,57...
Computers and Technology, 25.07.2019 06:10
Computers and Technology, 25.07.2019 06:10
Computers and Technology, 25.07.2019 06:10