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 cross-section 3.2 cm in diameter. There is a 2.4 cm diameter hole in the center of the cross-section for the entire length of the rod.

Question

mertsj · Answer

I solved this for you yesterday.  Why are you posting it again?

anonymous · Answer

it wasnt right

mertsj · Answer

What is the answer?

anonymous · Answer

you gave me 34.7, my software rejected it

mertsj · Answer

And why do you have that underscore after the lb_   ?

anonymous · Answer

|dw:1328838221094:dw|

mertsj · Answer

lb_m/ft^3
What does that mean?

anonymous · Answer

|dw:1328838314615:dw|