﻿ Two containers, x and y, both contain nitrogen gas at a temperature of 30° c and a pressure of 1 atm. the initial volume of each
, 08.11.2019 05:31, 20vmiller

# Two containers, x and y, both contain nitrogen gas at a temperature of 30° c and a pressure of 1 atm. the initial volume of each of the containers is v30 = 0.5 liters. the only difference between the two containers is that while container x has a piston that is sealed and cannot move, the gas in container y is allowed to expand against the surrounding atmosphere. qx is the amount of heat required to raise the temperature of the gas in container x by 10° c, and qy is the amount of heat required to raise the temperature of the gas in container y by 10° c. what is the difference between qx and qy? use 0°c = 273.15 k qx - qy =

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Engineering, 04.07.2019 18:10, ahmedeldyame
Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.