Answer to Question #44687 in Physics for Camilla

Question #44687
(a) Assume your heart uses 1.2 J of energy per heartbeat.?

(i) Write down a plausible number for the rate (i.e. number of times per second)
at which your heart is beating now. [2]
(ii) What is the rate at which your heart uses energy per second (in J s−1
) ?
[2]
(iii) If you live to be 90 years old, how many heartbeats would you have had ? [2]
(b) Your brain uses energy at a rate of ∼ 1.5 × 106
J per day.
(i) What is the rate at which which your brain uses energy per second ? [2]
(ii) Over the course of this exam, how much energy will your brain have used ?

Seems easy enough,but just can't get it right.

Thank you ! :)
1
Expert's answer
2014-08-05T03:46:33-0400
The answer to the question is available in the PDF file https://www.assignmentexpert.com/https://www.assignmentexpert.com/homework-answers/physics-answer-44687.pdf

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be the first!

Leave a comment

LATEST TUTORIALS
New on Blog
APPROVED BY CLIENTS