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Natural gas is stored in a spherical tank at a temp. of10oC. At a given initial time, the pressure in thetank is 100 kPa gage, and the atmospheric pressure is 100 kPaabsolute. Some time later, after more gas is pumped into thetank, the pressure in the tank is 200 kPa gage, and the temp. isstill 10oC. What will be the ratio of the mass of natural gas in the tank when P = 200 kPa gage to that when the pressure was 100kPa gage?
An 8-inch water main with a flow rate of 14 ft3/sec raises 100-feet. At the beginning of the main the pressure is 110 psig and drops to 50-psig at the end. For this water main calculate the head loss
Draw a plan of a typical strip mine showing all operational features and equipment and why is the working slope of an open pit usually much flatter than the final slope?
hydrogen is flowing in a 50 mm diameter pipe at a mass rate of 0.01 kg/s. at section 1 the pressure is 280 kPa abs and t= 25 . what is the average velocity?
How high (m) a column of ethyl alcohol would be required to give the same pressure as 700 mm Hg
The elevtion of M is 875 . a transit was set at point M and a leveling rod was held vertically at point N. the horizontal cross line of the telescope was inclined so the reading of the horizontal cross line
Compare the size of a CMFR (completly mixed flow reactor) and PFR (plug flow reactor) to achieve 50 percent removal of a contaminant, given a flow rate of 10^4 m^3/d and a first-order rate constant of -0.4/hr. Repeat for 99 percent removal.
The river characteristics just upstream of the wastewater discharge are: flow = 7.5 m3/s, BOD = 5.5 mg/L, DO = 90% of saturation, and temperature = 25oC. For this water, kd = 0.18 d-1 and kr = 0.22 d-1.
An airport corridor is 30 ft wide. given a peak demand of 300 pedestrians per minute and an average walk speed of 3 ft/s, estimate the LOS at the corridor
If the coefficient of sratic friction between the wheels at B and the ground is 0.5 determine if it is possible to pull at p=1200 lb without causing the wheels at B to slip or the front wheels of A to lift off the ground
Compute the effective composite modulus of subgrade reaction (please consider the subbase, the presence of a relatively shallow rock foundation, and the potential loss of support)
At several points in the system a 90 degree bend is required. Compute the energy loss in each bench if the radius outside of the bend is 300mm
Assuming that the minimum detention time ( with one train out of service) is 30 s, what is the size of these basins assuming equal size and cubic wetted dimension
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