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1.An ungated spillway is to deliver 150,000 cfs with a crestelevation of 1000 ft. The upstream reservoir elevation is not toexceed the elevation of 1030 ft. The streambed is at elevation 800ft. Determine the length of the crest required.
2.A rigid tank contains 5 lbm of water at 60 psia, 320 F. Thetempertaure of the water drops to 260 F as a result of heattransfer to the surroundings Determine:
a. The final pressure in tank
b The mass of the liquid water and vapor water at the finalstate
c Show this process on a p-v diagram w/ respect tothe saturation/actual pressure values etc.
d. The heat transfer
Consider your cooking gas contains 80% propane and 20% butane. While burning on a cooktop, assume it burns with 200% excess air. If no heat is lost, determine the maximum possible flame temperature.
A full tank (3 m height) discharges water from an output pipe following the equation: W_out = A z^1/2. Calculate the time required to reduce the level to 1 m. Data: A _s = 1 m^2, A = 0.2777 kg (s m^1/2), density water = 1000 kg/m^3
Two parcels of air are mixed. The given properties of the two parcels and the final mixed parcel are as follows: parcel (1): volume = 1 Liter, Temperature = 10 Celsius, pressure = 1 atm, relative humidity = 50%, parcel (2): volume 1 Liter, Tempera..
Granny viola has been saving money in the Bread and Butter mutual fund for 15 years . She has been a steady depositor over those years and has a pattern of putting $100 into the account every 3 months.
friction on the concrete surface creates a couple moment of 100 Mm on the blades of the trowel. Determines the magnitude of the resultant couple forces so that the resultant couple on the trowel is zero
The pulleys attached to the shaft are loaded as shown. If the bearings at A and B exert only horizontal and vertical forces on the shaft, determine the required diameter of the shaft to the nearest 1/8 in. using the maximum-shear-stress theory of fa..
A laboratory space has a heat gain of 3 tons with a sensible heatfactor of 0.7. The indoor design conditions are 78 F at 40% RH. Theoutdoor air design conditions are 95 F at 50% RH. The coolingequipment has a fixed air flow rate of 350 cfm/ton of coo..
A 3000-lb car has a maximum speed (at sea level and on a level, paved surface) of 140 mi/h with 16" radius wheels, a gear reduction of 3.5 to 1, and a drivetrain efficiency of 92%. It is know that at the car's top speed the engine is producing 220..
A distance of 72.55 ft is recorded using a steel tape weighing 0.016 lb per foot. The tapes is supported only at the ends with a tension of 15 lb. Find the distance corrected for sag.
If the systems will reduce insurance claims by $100,000 two years from now, how much should the company be willing to spend now, it is uses an interest rat of 12% per year
A contractor has both a 3-cy and a 5-cy shovel in the equipment fleet. Select the minimum-size shovel that will excavate 400,000 bcy of common earth in a minimum of 130 working days of 8 hr each.
An unknown immiscible liquid seeps into the bottom of an openoil tank. Some measurements indicate that the depth of theunkown liquid is 1.5m and the depth of the oil ( specific weight =8.5
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