No teto de um vagão ferroviário, prende-se uma esfera de aço por meio de um fio leve e inextensível. verifica-se que em um trecho retilíneo e horizontal da ferrovia o fio se mantém na posição indicada, formando com a vertical um ângulo de 45⁰. no local, adota-se g=10m/s².
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Physics, 22.06.2019 23:10
Ablue car pulls away from a red stop-light just after it has turned green with a constant acceleration of 0.5 m/s 2 . a green car arrives at the position of the stop-light 6.5 s after the light had turned green. if t = 0 when the light turns green, at what time does the green car catch the blue car if the green car maintains the slowest constant speed necessary to catch up to the blue car? answer in units of s.
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Physics, 23.06.2019 00:30
Which of the following statements are true for an isothermal process? check all that apply. - during an isothermal process, the work done by the gas equals the heat added to the gas. - during an isothermal process, the internal energy of the system changes. - an isothermal process is carried out at constant temperature. - an isothermal process is carried out at constant pressure. - an isothermal process is carried out at constant volume.
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No teto de um vagão ferroviário, prende-se uma esfera de aço por meio de um fio leve e inextensível....
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