1) The spectral emittance of a radiating cavity is maximal at a wavelength of 32 µm. The temperature is then changed so that the total power radiated in the cavity triples. Calculate the new temperature of the cavity. 2) A proton is moving at a speed of 0.923c. If the kinetic energy is tripled, by how much does the speed increase?

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1) The spectral emittance of a radiating cavity is maximal at a wavelength of 32 µm. The
temperature is then changed so that the total power radiated in the cavity triples. Calculate
the new temperature of the cavity.
2) A proton is moving at a speed of 0.923c. If the kinetic energy is tripled, by how much does
the speed increase?
Transcribed Image Text:1) The spectral emittance of a radiating cavity is maximal at a wavelength of 32 µm. The temperature is then changed so that the total power radiated in the cavity triples. Calculate the new temperature of the cavity. 2) A proton is moving at a speed of 0.923c. If the kinetic energy is tripled, by how much does the speed increase?
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