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A tank containing methane has a pressure of 600 kPa and is sitting outside where the air temperature is 20?C. A careless hunter shots a bullet from a rifle that hits the tank. Assuming the resulting hole acts like an isentropic converging nozzle with a throat diameter of 0.08 cm, calculate the mass flowrate in kg/s of methane that initially escapes from the tank.
Determine: a. the Level of Service for this segment; b. the loss in Level of Service, if due to construction the lane width is reduced to 10 feet and there are concrete barriers one foot away from either end of the pavement.
If an additional 11ft lane is added (each direction) and all other factors stay the same, what will be the new level of service?
Compute the ratio of the nominal flexural strength of the beam to the maximum service load moment, and compare your findings to the ACI load factors and strength reduction factor.
determine the number of bricks and cubic feet of mortar required for 100 square feet of wall. the ties are to be spaced 16 inches on center vertically and 24 inches on center horizontally
The following data are obtained for a particular reach of the Provo river in Utah: cross sectional area A = 183 ft2, free surface width = 55 ft, average depth = 3.3 ft, Rh = 3.32 ft, V = 6.56 ft/s, length of the reach = 116 ft, and elevation drop ..
derive an equation and solve for the volume V of a CSTR, operated isothermically for the second-order reaction 2R->P, where rR=-kC^2 R. Data are k=6.0 L/mol-s, CRin=0.005 mol/L, CRout=0.0005 mol/L, and Q=100 L/s.
Assuming unit surface area, find the conductive heat loss through the furnace wall and the temperature at the interface of the fire clay and red brick.
An open top tank contains a layer of SAE 30 oil 0.5 m thick, a layer of water 0.7 m thick, and a layer of mercury 0.3 m thick. Calculate the pressure, and the piezometric head at the free surface, at both interfaces, and at the tank bottom.
an observer has determined that the time headways between successive vechile on a section of the highway are exponentially distributed and that 65% of the headways btw vehicles are 9 seconds or greater.
a stream f gas flowing at 3000 cfm has a particulate loading of 50gr/ft what is the allowable exit loading if 95 % collection efficiency is required. what is the mass of the particles collected
A reverse osmosis plant desalinates 5X10^6 L/day of feedwater containing 1500 mg/L of salts, yielding 3X10^6 L/day of product water with 75 mg?l of salt. What would the salt concentration be in the brine?
A large rock became visible to a driver at a distance of 175 ft. Assuming a perception-reaction time of 0.8 s, an initial speed of 42 mi/h, a coefficient of friction of 0.5, and a level roadway, calculate the speed at impact.
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