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Physics, 16.02.2021 21:20 PBWaffles4864

7. Responde à seguinte questão. Numa atividade laboratorial, mediu-se o peso de uma esfera metálica maciça, tendo-se obtido o
valor de 8,5 N. De seguida, mergulhou-se a esfera num líquido e observou-se que o valor lido
no dinamómetro era diferente.
Sabendo que o valor da impulsão sofrida pela esfera no líquido foi 1,3 N, qual terá sido o valor
marcado no dinamómetro quando a esfera se encontrava totalmente mergulhada.

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