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Physics, 22.06.2019 11:00
A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?
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Physics, 22.06.2019 12:30
An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5Ă103 j and the energy transferred thermally out is 99.4Ă103 j. there are 1.5Ă1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1â2 b. 2â3 c. 4â1 d. 1â2 and 4â1 e. none of the above
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Physics, 22.06.2019 16:30
In a hydrogen molecule there are a total of four charges, 2 protons in the two nuclei, and 2 electrons. how many unique charge-pairs are there (without double counting)?
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Physics, 22.06.2019 16:30
He latent heat of vaporization for ethyl alcohol is 854 j/g. the amount of energy, rounded to the nearest whole number, needed to change 5.20 grams of ethyl alcohol from a liquid to a gas is
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