SOLUTION: What is the weight of a 50ft fire hose filled with water if the hose is 3" in diameter and the weight of the empty hose is 35lbs? I don't even know where to begin. Please help?

Question 498424: What is the weight of a 50ft fire hose filled with water if the hose is 3" in diameter and the weight of the empty hose is 35lbs?
I don't even know where to begin. Please help?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
What is the weight of a 50ft fire hose filled with water if the hose is 3" in diameter and the weight of the empty hose is 35lbs?
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Find the volume of the hose. It's a cylinder.

r = d/2 = 1.5 inches
h = 50 ft = 600 inches
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Get the volume in cubic inches
Divide that by 1728 to get cubic feet
1 cu ft of water weighs apx 62.4 pounds
Add the 35 pounds for the hose to that.

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