Chemistry, 19.05.2021 23:40 mikurrjurdan
In the US Alternating Current is used. It has a frequency of 60 Hz. If you are looking at the waveform for AC how many wavelengths pass in 2 seconds?
A.24
B.240
C.60
D.120
Answers: 2
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A__ is two or more substances that are together in the same place but are not chemically combined
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Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct
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In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?
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Which process describes vaporization that takes place below the surface of a liquid? condensation melting boiling evaporation
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In the US Alternating Current is used. It has a frequency of 60 Hz. If you are looking at the wavefo...
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