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O que acontece quando ATIRAMOS para CIMA? Você já se perguntou o que acontece com uma bala disparada para o alto? No vídeo de hoje, respondemos à dúvida e explicamos todo o trajeto da bala: desde a velocidade inicial, de cerca de 900 km/h, até o momento em que ela atinge a velocidade terminal, por volta de 200 km/h, ao cair. Descubra como a resistência do ar e a gravidade influenciam esse movimento e por que disparos para cima são tão perigosos. #curiosidades #física #tiro #manualdomundo
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Qual a VELOCIDADE da ELETRICIDADE? Você aperta o interruptor e a luz acende na mesma hora. Parece que a eletricidade é incrivelmente rápida, né? Mas o que pouca gente sabe é que os elétrons dentro do fio se movem a poucos milímetros por segundo — tão devagar que demorariam mais de 15 minutos para percorrer apenas 1 metro. Mesmo assim, o efeito da corrente elétrica parece ser imediato. Como isso é possível? #LUZ #velocidade #energia #elétrons #curiosidades
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