Question

Please Help: Average air pressure at sea level is about 14.7 pounds per square inch, and Earth's total surface area is about 197,000,000 square miles. One square mile equals 4,000,000,000 square inches. Using this information, how much does the entire atmosphere weigh? Show your work for full credit, and either use scientific notation OR group digits in your answers with commas (e.g. 100,000,000 instead of 100000000).

Answer 1

It will be easier to calculate teg weight of the entire atmosphere in scientific notations

We can calculate the weight of atmosphere by multiplying 14.7 pounds weight per square inch, with Earth surface area in square miles and then with, square inches.

So let's first convert data into scientific notations...

Surface area of Earth in miles = 197,000,000

Or. 19.7×10^7

Square inches in a mile = 4,000,000,000

Or 4×10^9

So weight of entire atmosphere of the earth is =

= (14.7) × (19.7×10^7) × (4×10^9)

= 1158.36× 10^16 pounds approximately.

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