Physics, 20.12.2019 17:31 deanblackstone
After two half lives, the fraction of nuclei remaining is : (a) 1/2 (b) 1/9 (c) 1/8 (d) 1/4
Answers: 3
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In which of the following would the particles move most rapidly? a. ice at -20 °c b. water at 20 °c c. steam at 110 °c d. boiling water e. ice at 0 °c
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For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat
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Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.
Answers: 2
After two half lives, the fraction of nuclei remaining is : (a) 1/2 (b) 1/9 (c) 1/8 (d) 1/4...
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