Physics, 28.03.2022 14:00 nanamath5662

A. Consider a horizontal slab of air whose thickness is dz. If this slab is at rest, the pressure holding it up from below must balance both the pressure from above and the weight of the slab. Use this fact to find an expression for dP/dz, the variation of pressure with altitude, in terms of the density of air. b. Use the ideal gas law to write the denisty of air in terms of pressure, temperature, and the average mass m of the air molecules (air is a mixture of N2 (78% by volume), O2 (21%), and argon (1%)) Show, then, that the pressure obeys the differential equation: dP/dz = -(mg/kT)P called the barometric equation.

c. Assuming that the temperature of the atmosphere is independent of height (not a great assumption but not terrible either), solve the barometric equation to obtain the pressure as a function of height: P(z) = P(0)e^(-mgz/kT) Show also that the density obeys a similar equation.

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Answer from: Quest

Iread this book last year so take this with a grain of salt.gene jumps from the tree to compete with finny due to the fact that gene is always trying to do better than finny. he is put under the grasp of peer pressure due to finny almost forcing him to do this. ever since he first jumped finny kept pressuring him to jump since he thought gene enjoyed jumping.rather than uses this answer you should probably just reread chapters 3-4

Answer from: Quest

so here is the information for current research:

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-in the summer, the process is reversed, and the heat pump moves heat from the indoor air into the heat exchanger

-the heat removed from the indoor air during the summer can also be used to provide a free source of hot water

Answer from: Quest

The sample with the lowest specific heat capacity will have the greatest temperature increase. in this case, it would be platinum.

Answer from: Quest

What do you mean there’s no jelly beans

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A. Consider a horizontal slab of air whose thickness is dz. If this slab is at rest, the pressure ho...

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