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Using a pulley system with a mechanical advantage of 15, how large and imput force would be needed to lift a piano weighing 345 n?
n =fi
Answers: 2
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When microscope slides are stained to show blood cells, the small red blood cells that appear on the slides are much numerous than the large white blood cells. this supports the concept that
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Select all that apply. when the products of a reaction have less energy than the reactants: the reaction is exothermic. the reaction is endothermic. the reactants lost internal energy. the change in enthalpy is positive.
Answers: 3
Using a pulley system with a mechanical advantage of 15, how large and imput force would be needed t...
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