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.

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.

To figure out how many joules you have used when you use 135 calories of energy, you need to know the conversion factor between calories and joules. The conversion factor is approximately 4.18 joules per calorie.

To calculate the answer without using a conversion system, you would multiply the number of calories by the conversion factor:

135 calories * 4.18 joules/calorie = 564 joules.

Therefore, if you use 135 calories of energy, you would have used approximately 564 joules.