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2 January, 21:39

If your front lawn is 21.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1350 new snowflakes every minute, how much snow, in kilograms, accumulates on your lawn per hour? Assume an average snowflake has a mass of 1.90 mg.

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  1. 3 January, 00:16
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    snow is 64.638 kg / hr

    Explanation:

    Given data

    wide w = 21 feet

    long L = 20 ft

    area A = 1350 square foot

    mass of snow m = 1.90 mg

    to find out

    snow in kilograms / hour

    solution

    we will find snow in kg

    so we apply formula that is

    snow kg / hour = w * L * A * m * 60/10^6

    put all value we get snow

    snow = 21 * 20 * 1350 * 1.90 * 60/10^6

    snow = 420 * 1350 * 1.90 * 60/10^6

    snow = 1077300 * 60/10^6

    snow = 64.638

    hence snow is 64.638 kg / hr
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