Tapering telephone pole based question
A tapering telephone pole is 10 m long and has a mass of 300 kg. Its center of gravity is 3m from the thick end. What force must be exerted to hold the thin end off the ground so that the axis of the pole is parallel to the ground?
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Ethyl alcohol, C2H5OH, can be made by the fermentation of glucose,C6H12O6, as indicated by the equation: C6H12O6(aq) ---> 2C2H5OH(aq) + 2CO2(g)
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A volume of 5.0 L of polluted air at 18.0 degrees celsius and 747mmHg is passed through lime water [an aqueous suspension ofCa(OH)2], so that all the carbon dioxide present is precipitated as CaCO3.
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A uniform board has a mass of 25 kg and is 4 m long. The board is resting on a fulcrum that is 1.3 m from one end. What mass of brick must be placed on the end of the board so that the board will balance on the fulcrum?
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