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Physics, 22.06.2019 06:30
The energy of a photon was found to be 3.38 × 10–19 j. planck’s constant is 6.63 × 10–34 j • s. which color of light corresponds to this photon?
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What is the difference between mass density and weight density?
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Lead-202 has a half-life of 53,000 years. How long will it take for 15/16 of a sample of lead-202 to...
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