Please answer these Questions:

Asked by omprakasharya123 | 14th Feb, 2011, 05:57: AM

Expert Answer:

Dear student
Please post each query individually.
'72 times in a minute' actually tells about the frequency of the heart beat.
Time here is: 1 minute = 60 s
So, using the equation P= W/t
or, W = Pxt = 1200 x 60 = 72000 J
Hope this helps.
Regards
Team
Topperlearning

Answered by  | 15th Feb, 2011, 12:01: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.