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1. What is a volcano?...
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Physics, 22.06.2019 09:00, cmflores3245
Sobre transformaƧƵes cĆclicas, sĆ£o feitas algumas afirmaƧƵes, determine quais estĆ£o corretas. i ā a variaĆ§Ć£o de energia interna em uma transformaĆ§Ć£o cĆclica Ć© nula; ii ā o trabalho, em uma transformaĆ§Ć£o cĆclica, Ć© sempre positivo; iii ā ao completar um ciclo, o gĆ”s tem a mesma temperatura com a qual comeƧou a transformaĆ§Ć£o; iv ā uma transformaĆ§Ć£o cĆclica Ć©, obrigatoriamente, composta de transformaƧƵes conhecidas, como adiabĆ”tica, isocĆ³rica, etc: a) i e iii b) i e ii c) ii e iii d) i e iv e) iii e iv
Answers: 1
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Physics, 22.06.2019 18:50, rurbanok12
8.29 two streams containing pyridine and acetic acid at 25Ā°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25Ā°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (Ī“mixh) is given below.
Answers: 3
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Physics, 22.06.2019 23:00, elenagarcia123
The statue of liberty is 305.5 feet high. when the angle of elevation of the sun is 50 , what is the distance to the tip of the shadow from a point at water level and directly below the highest point of the statue?
Answers: 3
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Physics, 23.06.2019 02:30, Tcrismon1000
What are two examples of phase changes that skip a phase during transition?
Answers: 1
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