If your front lawn is 20.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1450 new snow flakes every minute, how much snow (in kilograms) accumulates on your lawn per hour? Assume an average snow flake has a mass of 2.10 mg.
total area of lawn = l*b
= 20*20
= 400 ft^2
snow fall per square foot per min = 1450 *2.1 = 3045 mg
= 3.045 g
snow fall per square foot per hour = 3.045 *60
= 182.7 g = 0.1827 kg
TOTAL snow fall = 400*0.1827 = 73.08 kg
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