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Un chico de 45 kg de masa se encuentra de pie sobre la nieve. Calcula la presión sobre este:
a) se apoya sabe una bota, cuyas superficies suman 400 cm².
b) se apoya sobre unos esquÃs de 150 x 22 cm cada uno. ¿SabrÃas decir en qué situación se hundirá menos la nieve? Razona la respuesta
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Un chico de 45 kg de masa se encuentra de pie sobre la nieve. Calcula la presión sobre este:
a) se...
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