posted by michelly .
if 478 watts of power are used in 14 seconds, how much work was done?
Please select the School Subject carefully so the right teachers read and answer your post. 9th grade is not it. (Math, Physics, etc.?)
Try some o f the follwoing links to see if anything will assist you:
Work = Power * time
Work = 478 Watts * 14 sec
Work = 6692 Joules