Amountain 20.0 km from a person exerts a gravitational force on him equal to 1.85% of his weight. (a) calculate the mass (in kg) of the mountain. kg (b) compare the mountain's mass with that of earth. mmountain mearth = (c) what is unreasonable about these results?

Aswimming pool whose volume is 10 comma 000 gal contains water that is 0.01% chlorine. starting at tequals0, city water containing 0.003% chlorine is pumped into the pool at a rate of 5 gal/min. the pool water flows out at the same rate. what is the percentage of chlorine in the pool after 1 hour? when will the pool water be 0.006% chlorine?