Question
Asked Dec 13, 2019
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  1. How many residences can be served? If we have a compactor truck which has a capacity of 30 yd3, each truck makes 3 trips/day 5 days a week, each residence has 3 people and each person produces 4lbs of waste. The density of the compacted waste is 425 lbs/yd3
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Expert Answer

Step 1

It is required to calculate the number of residences that can be served based on the given condition.

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Capacity of compactor = 30 yd/trip Frequency = 3 trips/day and 5 day a week Total waste produced from each residence = 3 x 4 lb = 12 lb Density = 425 lbs/yd³

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Step 2

The total volume of waste which can be transported in the entire week is calculated as,

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Total trips in a week = 3 x 5 = 15 trips Volume of waste transported in a week = 15 x 30 = 450 yd?

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Step 3

Now calculating the total mass of t...

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Mass Density = Volume Mass = 425 x 450 Mass = 191250 lb

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