Which of the following occurs on march 21?
a. summer solstice
b. winter solstice
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Answers: 1
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Amplitude is a measure of a waves a; speed b; distance c; energy d; frequency
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Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v
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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.
Answers: 3
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