Thread: Urgen Averages help neded

Hi all.

Is there anybody who can help me with this one on my coursework?

Total time is 14.5 mins

For 2.5 mins output is 5.22 Watts
For 12 mins output is 3.03 Watts


What is the average Watts?

Originally Posted by mabaza

Hi all.

Is there anybody who can help me with this one on my coursework?

Total time is 14.5 mins

For 2.5 mins output is 5.22 Watts
For 12 mins output is 3.03 Watts


What is the average Watts?

1 Watt = 1 Joule per second .....

Total energy = (2.5)(60)(5.22) + (12)(60)(3.03) = ........ Joules

Total time = (2.5 + 12)(60) = ....... seconds.

Average Watts = (Total energy)/(Total time) = .....

Thanks very much for your help.