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Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied
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(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present
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Physics, 22.06.2019 11:00
Which of the following are guidelines to follow for obtaining accurate observations
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If a leftward force on a box is 5N and the rightward force on a box is 3 N, the net force on the box...
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