Physics, 02.01.2020 19:31 BackUpAccount
What is the threshold frequency for sodium metal if a photon with frequency 6.66 × 1014 s−1 ejects a photon with 7.74 × 10−20 j kinetic energy? will the photoelectric effect be observed if sodium is exposed to orange light?
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An electric current in a wire will push or pull on a permanent magnet. which statement best explains how an electric current creates an electromagnetic force on another magnet?
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Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.
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Physics, 22.06.2019 06:30
The mini-refrigerator fire was most likely caused by what type of wiring?
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What is the threshold frequency for sodium metal if a photon with frequency 6.66 × 1014 s−1 ejects a...
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