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O professor de Física Walter Lewin nos mostra como o aumento da velocidade de rotação do conjunto acontece com o recolhimento dos braços Com pesos, por causa da conservação do momento angular. Em um sistema isolado, o momento angular se conserva. O momento angular é uma relação entre o momento de inércia e a velocidade angular. Matéria completa no Instagram e Facebook ciências e o mundo segue lá!
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🤯 O que parece impossível é, muitas vezes, alguém dominando a Física com muita habilidade. 1️⃣ Momento angular e torque 🛢️ Ao girar o tambor, ele ganha momento angular, tornando seu eixo mais estável. Com uma leve inclinação, o atrito gera um torque que curva sua trajetória de forma previsível até o destino. 2️⃣ Termodinâmica e elasticidade 🔥 O aço incandescente é conduzido com um alicate enquanto ainda está extremamente quente. Nessa temperatura, ele se torna mais dúctil e fácil de deformar
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