00:01
All of these are going to be simple unit conversions.
00:03
We just need to make sure that we know what conversion factors to use.
00:07
If we want to go from joules to kilojoules, we use the 1 ,000 joules to 1 kilojoules, giving us 1 .259 kilojoules.
00:19
If we have 2 .18 times 10 to the negative 18 joules, to go to add a joules, we recognize that one add a jewel is 1 times 10 to negative 18 joules.
00:29
So we just get 2 .18 out of joules.
00:33
At 5 .5 megajoules, we can convert the megajoules into joules, knowing there's 1 times 10 to 6 joules in 1 megajoule, and then convert the joules into kilojoules, knowing there's 1 ,000 joules in 1 kilojoules.
00:49
If you wanted, you could have done this in one conversion, recognizing there is 1 ,000 kilojoules in 1 megajoules.
00:58
And we get 5 .5 times 10 to the 3 kilojoules...