This depends on the size of the copper pipe and what class it is. For example, copper pipe half inch class 0 and copper pipe class 3 have a wide weight difference because the wall of the class 3 copper pipe is much thicker.
Depends how long it is
40
its 10000kg
Yes.
It would weigh about 14.3 pounds .
A boy that is 4 foot 9 inch should weigh between 30 to 40 kilograms. This is the ideal weight but it varies in most cases.
Nothing--in space
152 pounds
100-115
125 lbs
500 / (16 x 12) = ~2.604 gallons/inch
2000 Gallons