Do we all know the reason why walking is possible 🤔, unfortunately almost 79% do not know. Isaac Newton (1642-1727) had a 3rd law under momentum,that states action and reaction are equal and opposite.so when we walk we exert force on the ground, which the ground exert an equal an opposite force back on us .so we see the physics applied
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Pls any out there the world should answer this question,what closes the trachea when we swallow food to prevent choking sothe foodenters to the oesophagus directly?
biology
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Epiglottis
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Cool
Ok,now change in momentum is equal to impulse,proove?
physics