00:01
We wish to change kilocalories in a day into a power in watts.
00:06
Kilocalories per day is a measurement of power because it is a measurement of energy per time.
00:14
But if we want it to be in watts, 1 watt is equal to 1 joule per second.
00:23
So what we want to do is change this into joules per second.
00:29
2 ,000 kilocalories.
00:31
Well, kilo means 1 ,000.
00:35
So 2 ,000 kilocalories is 2 million calories.
00:44
There are 4 .186 for me.
00:50
Some books use 4 .186.
00:52
We're going to use 4 .184 joules per calorie.
00:58
4 .184 joules per calorie.
01:05
That would get us now to joules per day.
01:10
So we need to change the days to seconds...