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Suppose the summer daily demand for water use in Phoenix is normally distributed with a mean of 310 million gallons/day and a standard deviation of 45 million gallons/day. Also suppose the city has reservoirs whose combined storage is 350 million gallons.
a. What is the probability that a day requires more water than is stored in city reservoirs?
b. What reservoir capacity is needed so that the probability that it is exceeded is 1%?
c. What amount of water use is exceeded with 95% probability?
calculate the ratio of area to volume for unit cube a unit sphere in inscribed inside the cube, and as write cylinder inscribed inside the cube.
Solar cookers can be used in less developed countries for cooking and also for thermal disinfection of water. To disinfect water, the water must be heated to about 35 Celsius for 5 hours. Of course, it takes time to raise the temperature of the wa..
A typical propane tank that we use for barbeque initially contains a pressure of 10 psi. The pressure is low, so we take it to the local store to fill the tank with more propane. After filling,the pressure is 100 psi.
Air enters an adiabatic nozzle steadily at 300 kPa, 200 o C, and 30 m/s and leaves at 100 kPa and 180 m/s. The inlet area of the nozzle is 80 cm 2 . Determine (a) the mass flow raw through the nozzle, (b) the exit temperature of the air, and (c) the ..
You are a real estate salesperson working for Good Earth, Realtors, Inc. You receive 50 percent of all commissions received by the firm (net of MLS fees) for which you were either the listing agent or the selling agent.
A compressible clay layer 10.0m thick has an initial void ratio in situ of 1.026. Tests and computations show that the final void ratio of the clay layer after construction of a structure is 0.978. Determine the estimated primary consolidation set..
A 3220-lb car enters an S-curve at A with a speed of 60 mi/hr with brakes applied to reduce the speed to 45 mi/hr at a uniform rate in a distance of 300 ft measured along the curve from A to B.
Two immiscible fluids are in contact. Fluid I is denser and is also well mixed. The concentration of species a is cao everywhere within this fluid and the temperature in fluid I is held constant at To.
A gas occupise 250 ml and it's pressure is 550mm Hg @ 254C how many moles of gas are in this sample? (convert mm Hg to atm).
The perpendicular distance between two parallel tangents of a reversed curve is 20m. The azimuth of the back tangents of the curve is 270 00 and the azimuth of the common tangent is 310.
Calculate the largest tolerable internal crack length for a 7075-T651 aluminum alloy component that is loaded to a stress one-half of its yield strength without catastrophic fracture.
Create a MATLAB program and flowchart which will allow the user to input an unknown number of temperatures, each of which might be a temperature in Celsius, Fahrenheit, Kelvin, or Rankine, and will convert the user input temperature to each of the..
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