pls... i need the meaning ASAP. its hard to find everwhere... well for me though...
2006-10-15 04:37:10 · 7 answers · asked by babyfairypink 2 in Education & Reference ➔ Homework Help
here's another detail....
mega joule and joule that I need is in the food nutrition...
2006-10-15 04:54:33 · update #1
The joule (symbol: J) is the SI unit of energy, which is defined as the potential to do work. The joule has base units of kg·m²/s² = N·m. The base unit conversion can be remembered using the equation E = mc2, where E is in joules, m is in kilograms, and c is the speed of light in meters per second.
A mega Joule is 1,000,000 joules
2006-10-15 04:43:42 · answer #1 · answered by Chimbles 2 · 0⤊ 0⤋
Joules- The joule is a derived unit defined as the work done or energy requiredto exert a force of one newton for a distance of one metre.
1 Mega Joule = 1,000,000 J
2006-10-15 04:52:58 · answer #2 · answered by crazycanadien 3 · 0⤊ 0⤋
1 joule will heat 1 ml of water 1 degree C. edit sorry water has a heat capacity of 4.18J/gK so 4.18J will heat 1mL of water 1 degree so 10MJ will heat about 40 litres of water in your hotwater system so if you have a 200l hot water tank you will need at least 5m2 of plexiglass surface to get it hot
2016-03-28 10:07:53 · answer #3 · answered by Anonymous · 0⤊ 0⤋
a joule is a measure of energy. you use it alot in phsics using the formula e=mc2 but to be honest i cant really remember much about what it all means,
2006-10-15 04:42:12 · answer #4 · answered by Anonymous · 0⤊ 0⤋
a joule is the measurement of energy , ( J )
2006-10-15 04:44:26 · answer #5 · answered by tezzadaman 3 · 0⤊ 0⤋
hi this is to do with energy - either the amount of energy in a given food, or what we would use by exercising etc.. most people are more aware of calories though
2006-10-15 05:09:17 · answer #6 · answered by just trying to make a difference 5 · 0⤊ 0⤋
http://www.m-w.com/dictionary/joule
http://en.wikipedia.org/wiki/Joule
2006-10-15 04:45:16 · answer #7 · answered by Anonymous · 0⤊ 0⤋