What is the weight of the entire atmosphere in tonnes?

Physics
Tutor: None Selected Time limit: 1 Day

The area of the Earth’s surface is approximately 516 X 106 km2.  What is the weight of the entire atmosphere in tonnes?  Express your answer using scientific notation, in units of 1012 tonnes.

May 5th, 2015

You could use the average atmospheric pressure of 0.0066678 tonnes/square inch at the earth's surface to estimate the atmosphere's total weight.

516 X 10^6 km^2 = 8.4779 x 10^13 in^2

8.4779 x 10^13 in^2 x 0.0066678 = 0.05653 x 10^13 tonnes

= 0.5653 x 10^12 tonnes.

May 5th, 2015

Thank you soo much James.. Really Apreciate it.  thanks a lot again.

May 5th, 2015

You are welcome

May 5th, 2015

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