The person in the figure is standing on a weight scale in a sealed chamber. Init
ID: 2124310 • Letter: T
Question
The person in the figure is standing on a weight scale in a sealed chamber. Initially the
chamber is maintained at standard atmospheric pressure. However, the pressure is then
lowered and the new weight is noted. Derive an expression for the density of the person in
terms of his weight before (w1) and after (w2) the chamber is evacuated. Use rho1
and rho2 for the density of the air before and after the chamber is evacuated.style="font-family: arial, helvetica, sans-serif; font-size: small; text-align: -webkit-center;">
style="font-family: arial, helvetica, sans-serif; font-size: small; text-align: -webkit-center;">
Consider a typical adult weighing 190.0 lb and possessing a density of 915.0 kg/m3.
How low will the chamber need to drop in pressure at minimum to measure the person's
density if the weight scale can only measure to the nearest 0.20 lb? (Assume air is an ideal
gas and the chamber is maintained at standard temperature as the air is evacuated. The
density of air at sea level is roughly 1.22 kg/m3.)style="font-family: arial, helvetica, sans-serif; font-size: small; text-align: -webkit-center;">
style="font-family: arial, helvetica, sans-serif; font-size: small; text-align: -webkit-center;">
According to research and marketing, a customer's discomfort becomes a problem once
the pressure drops below 0.744 atm. Based on this result, would you seriously consider
investing in the company?style="font-family: arial, helvetica, sans-serif; font-size: small; text-align: -webkit-center;">
Explanation / Answer
pls post the figure
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