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anonymous
 4 years ago
The density of copper is 559 lb_m/ft^3. What is the mass of the copper pipe in pounds?
A copper pipe, used for plumbing from the water main to a house, is 5 meters long and has a circular crosssection 3.2 cm in diameter. There is a 2.4 cm diameter hole in the center of the crosssection for the entire length of the rod.
anonymous
 4 years ago
The density of copper is 559 lb_m/ft^3. What is the mass of the copper pipe in pounds? A copper pipe, used for plumbing from the water main to a house, is 5 meters long and has a circular crosssection 3.2 cm in diameter. There is a 2.4 cm diameter hole in the center of the crosssection for the entire length of the rod.

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Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.1pi (3.2/2)^2 * 500  pi (2.4/2)^2 *500 = 1759.29cm^3

perl
 4 years ago
Best ResponseYou've already chosen the best response.0now convert to ft^3 , and then multiply by density to get mass

Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.1\[1759.29 cm^3\times\frac{1 IN^3}{2.54^3 cm^3}\times\frac{1 ft^3}{12^3 IN^3}\times\frac{559 lbs}{1 ft^3}\]

perl
 4 years ago
Best ResponseYou've already chosen the best response.0of course the person who pposted it didnt bother waiting for a solution,
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