Suppose you drop a rockinto a darkwell and, using precision equipment, you measure the time for the sound of a splash to return. (a) Calculate the time required for sound to travel up the well, calculate the distance tothe water if the sound returns in 2.0000s. (b) Now calculate the distance taking into account the time for sound to travel up the well. The speed of sound is 332.00m/s in this well.​
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Physics, 22.06.2019 02:30
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Physics, 22.06.2019 09:00
Sobre transformações cÃclicas, são feitas algumas afirmações, determine quais estão corretas. i – a variação de energia interna em uma transformação cÃclica é nula; ii – o trabalho, em uma transformação cÃclica, é sempre positivo; iii – ao completar um ciclo, o gás tem a mesma temperatura com a qual começou a transformação; iv – uma transformação cÃclica é, obrigatoriamente, composta de transformações conhecidas, como adiabática, isocórica, etc: a) i e iii b) i e ii c) ii e iii d) i e iv e) iii e iv
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Physics, 22.06.2019 10:00
(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present
Answers: 3
Suppose you drop a rockinto a darkwell and, using precision equipment, you measure the time for the...
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