Suppose you use 135 calories of energy to perform a task, how many joules have you used? See, I don't want the answer, just the steps leading me up to the answer, like how to figure this problem out wiht out using a coverting system.
Assuming you are using energy calories, not food Calories, then
135 calories* 4.18J/cal= ...
so you are saying that there is 4.18 joules in 1 calorie, how many joules are in energy. I have my answer it is 564.3 using sinficant figures it is 564
564 Joules is corre ct.
1 answer
Yes, that's correct. To convert energy from calories to joules, you can multiply the given amount of energy (in this case, 135 calories) by the conversion factor (4.18 joules per calorie). So the calculation would be 135 calories * 4.18 joules/calorie = 564 joules.