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Biology, 26.07.2020 16:01 aalyyy

Explique cómo podemos hacer para trasladar una caja de 50 kg desde planta baja hasta un primer piso que presenta una inclinación de 40°, que tipo de máquina simple utilizaría.

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Explique cómo podemos hacer para trasladar una caja de 50 kg desde planta baja hasta un primer piso...
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