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CBSE Class 9 Answered

Please answer these Questions:
Asked by omprakasharya123 | 14 Feb, 2011, 05:57: AM
answered-by-expert 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 | 15 Feb, 2011, 12:01: PM

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