2006-09-07 10:50:17 · 3 answers · asked by Chris S 1 in Science & Mathematics ➔ Physics
that is 10 feet long and 18" X 9"
2006-09-07 10:55:15 · update #1
First of all do not worry about the length. The cross sectional area is expressed as follows.
A=9"X18"=162in^2
2006-09-07 12:06:15 · answer #1 · answered by Scott S 4 · 1⤊ 0⤋
For the best answers, search on this site https://shorturl.im/awtHc
A piece of wire is always going to have the same volume. If you stretch it longer, it gets thinner, i.e. its cross section is reduced. If you scrunch it shorter, it has to get fatter. However, it is hard to compress wire! Any time you change one dimension, the other dimensions have to change too, in order for it to keep the original volume.
2016-04-09 00:19:22 · answer #2 · answered by Anonymous · 0⤊ 0⤋
cross sectional area is the area at the end of the beam
so it would be 18x9 square inches.
2006-09-07 10:55:34 · answer #3 · answered by Schorpe 2 · 0⤊ 0⤋