Question

Will give braibliest for the person who answered first correctly How long will it take for a 30W light bulb to transfer 1200J of energy -400 seconds -4 minutes -40 seconds -4 seconds

Answer 1

40 seconds

Step-by-step explanation:

Time (measured in seconds) = Work Done (measured in Joules) / Power (measured in Watts)

Time (s) = 1200/30

Time (s) = 40

It will take 40 seconds for a 30W light bulb to transfer 1200J of energy.

Answer 2

40 seconds

Solution,

`p = (w)/(t) \\ or \: 30 = (1200)/(t) \\ or \: 30 * t = 1200 \\ or \: t = (1200)/(30) \\ t = 40 \: seconds`

Hope this helps..

Good luck on your assignment.