When placed in a lake, an object either floats on the surface or sinks. it does not float at some intermediate location between the surface and the bottom of the lake. however, a weather balloon floats at some intermediate distance between earth's surface and the top of its atmosphere. explain.
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If a balloon is taken outside on a very cold day, what will occur?
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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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What is a possible result of higher air temperature caused by global warming
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Which body is in equilibrium? (1) a satellite orbiting earth in a circular orbit (2) a ball falling freely toward the surface of earth (3) a car moving with a constant speed along a straight, level road (4) a projectile at the highest point in its trajectory
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When placed in a lake, an object either floats on the surface or sinks. it does not float at some in...
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