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O pêndulo de Newton é um dispositivo que demonstra a conservação do momento linear e da energia. Consiste em uma série de esferas de metal suspensas de modo que cada uma toque a outra. Quando uma esfera em uma extremidade é puxada e liberada, ela colide com as esferas adjacentes, transferindo sua energia e momento através delas, até que a esfera na extremidade oposta seja empurrada para fora com força equivalente. Isso resulta em um movimento contínuo de vai e vem, ilustrando princípios
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