Physics, 15.07.2019 17:30 dheydar3506
Ball is rolling down a hill. at one point near the top of the hill, its velocity is 2 m/s. further down the hill, its velocity is 9 m/s. what is δv? 9 m/s 7 m/s -7m/s -7m/s2
Answers: 1
Physics, 21.06.2019 19:30, Jazminfun70
Density of salty water as compared to the density of pure water is(a) is less(b) is always equal(c) is always more(d) may be less or more
Answers: 1
Physics, 22.06.2019 05:30, trevorhenyan51
Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?
Answers: 2
Physics, 22.06.2019 09:00, cmflores3245
Sobre transformações cíclicas, são feitas algumas afirmações, determine quais estão corretas. i – a variação de energia interna em uma transformação cíclica é nula; ii – o trabalho, em uma transformação cíclica, é sempre positivo; iii – ao completar um ciclo, o gás tem a mesma temperatura com a qual começou a transformação; iv – uma transformação cíclica 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
Answers: 1
Ball is rolling down a hill. at one point near the top of the hill, its velocity is 2 m/s. further d...
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