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A closed vessel of volume 3 m3 contains air saturated with water vapour at 38°C and a vacuum pressure of 660mm of mercury. The vacuum falls to 560 mm of mercury and the temperature falls to 26↑8C. Calculate the mass of air that has leaked in and the quantity of vapour that has condensed. Take the barometric pressure as 760 mm
A Venturimeter of throat diameter 0.076m is fitted in a 0.152m diameter vertical pipe in which liquid of relative density 0.8 flows downwards. Taking the coefficient of the meter as 0.97 find the discharge when the pressure gauges read the same
Design the springs and dampers of the system in order to have the damped period of vibration between 1 s and 2 s.
in moles of an ideal gas a and 1-nmoles of an ideal gas b each at 1 atm are mixed at total constant pressure. what
Determine the magnitude of the resultant force acting on a 5 kg particle at the instant t=2 s. if the particle is moving along a horizontal path defined by the equations r=(2t+10) m and theta = (1.5t^2-6t) rad, where t is in seconds
An elevator descends from rest with an acceleration of 5 ft>s2 until it achieves a velocity of 15 ft>s. Determine the time required and the distance traveled.
Determine the temperature at which the diffusivity D of Cu in Al is twice the diffusivity at 500K. Using your result for D of Cu in Al at 500K, estimate the distance that a Cu impurity would diffuse in Al at 500 K after 1 hour. Use the simple estimat..
In the an ideal turbo jet, the engine is designed such that the turbine work is divided equally between the compressor and the propeller. The gas from the turbine discharges to a nozzle for additional thrust.
A damped system is driven by a harmonic force F(t)=18 sin(12t). The system has a mass of 17.5 kg and damping constant of 42 N/s/m. Determine the spring constant k which produces maximum amplitude response. Also find out the maximum amplitude; (b) If ..
ball a is released from rest at a height of 40ft at the same time that a second ball b is thrown upward 5ft from the
air with a mass flow rate of 10 lbms enters a poorly insulated nozzle operating at steady state with a temperature of
your town has a proposal to install solar panels on the roof of the combined city hall - police station - fire station
a closed tank contains water and heating oil sg0.96 and is completely full of the two liquids with no air space at the
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