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World Languages, 28.03.2020 04:23, Ryan02717
Em uma aula de laboratório de Física, para estudar propriedades de cargas elétricas, foi realizado um experimento em que pequenas esferas eletrizadas são injetadas na parte superior de uma câmara, em vácuo, onde há um campo elétrico uniforme na mesma direção e sentido da aceleração local da gravidade. Observou-se que, com campo elétrico de módulo igual a 2 x 103 V/m, uma das esferas, de massa 3,2 x 10-15 kg, permanecia com velocidade constante no interior da câmara. Essa esfera tem: (adote: carga do elétron = -1,6 x 10-19 C carga do próton = + 1,6 x 10-19 C aceleração local da gravidade = 10 m/s2)
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Em uma aula de laboratório de Física, para estudar propriedades de cargas elétricas, foi realizado u...
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