A ladder of length l 22 m and mass m 140 kg rests on a
a ladder of length l = 2.2 m and mass m = 14.0 kg rests on a floor with coefficient of static friction ?s = 0.53. assume the wall is frictionless. what is the normal force the floor exerts on the ladder?
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mercury is often used as an expansion medium in a thermometer the mercury sits in a bulb on the bottom of the
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a flask contains 200 ml of 01m phosphate buffer that has a ph of 70 what volume of 01m naoh should be added to increase
a ladder of length l 22 m and mass m 140 kg rests on a floor with coefficient of static friction s 053 assume the
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what is the ph of a buffer if 23 grams of sodium hydrogen phosphate and 10 g of sodium dihydrogen phosphate are added
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