30 feet is a very unlikely size for a school!
about 30 pounds
about 5000 pounds+ water
About 30 to 40 pounds per foot, depending on body type.
30 lbs
20-30 tones (200000 kg
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.
Depends on the size of the aquarium. Water weights 10 pounds per gallon.
How much does a 14KB 30" chain weigh
Roughly 140 - 160 pounds.
Erm, I think anywhere between 130lb to 160lb is healthy...
HI Any thing from two ton --two half ton depending on height and eng size