Based on the expression dp/dz = -pg, at what elevation is the absolute pressure 70% of the pressure at sea level? Take g to be a constant, assume changes in the atmosphere's state with elevation to be polytropic with n = 1.228, and take the temperature and pressure of the atmosphere at sea level to be 25.5°C and 0.92 atm. a. The elevation is kilometres. b. The density of the air at sea level is kg/m³.

Based on the expression dp/dz = -pg, at what elevation is the absolute pressure 70% of the pressure at sea level? Take g to be a constant, assume changes in the atmosphere's state with elevation to be polytropic with n = 1.228, and take the temperature and pressure of the atmosphere at sea level to be 25.5°C and 0.92 atm. a. The elevation is kilometres. b. The density of the air at sea level is kg/m³.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

Based on the expression dp/dz = -pg, at what elevation is the absolute pressure 70% of the pressure at sea level? Take g to be a
constant, assume changes in the atmosphere's state with elevation to be polytropic with n = 1.228, and take the temperature and pressure
of the atmosphere at sea level to be 25.5°C and 0.92 atm.
a. The elevation is
b. The density of the air at sea level is
kilometres.
kg/m³.

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