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A 500 lb flywheel is shown. A 100 lb block is held by a light cable wrapped around the hub of the flywheel the radius of which is 2 ft. If the system is released from rest and the weight has a velocity of 11 ft/sec after 5 s, what is the radius of gyration of the wheel?
Briefly describe electron and hole motions in a p-n junction for forward and reverse biases;
what is the uniform deterministic arrival rate if the vehicle queue is cleared in 35 minutes after vehicles begin to arrive (in veh/min.)?
what is the difference between factor of safety in rankine & coulomb in overturning, sliding and bearing capasity ?
HOCL is added to water in a tank as a disinfectant. After equilibrium is reached it is found that the pH of the water in the tank is 8.2 and the gas phase partial pressure is the head space of the tank is 0.2E-7 atm.
Who is responsible for verifying that the construction of the building complies with the hurricane protection provisions of the building codes What authority does the responsible party have to verify such compliance
A biological reactor is used to treat wastewater from a small community (Q = 100,000 gpd). The influent BOD5 concentration to the reactor is 200 mg/L and the required effluent BOD5 concentration is 30 mg/L.
If the amount of heat transfer in the HE unit is 2460 kJ per kg of steam, what is the magnitude of shaft work obtained from the turbine in kW?
Suppose that a water treatment plant has a Parshall Flume with a 4 ft wide throat. a) If the upstream depth of the water (ha) is 1 ft and the depth of the water in the throat section (hb) is 0.65 ft, what is the flow rate in gpm
Tacoma Narrows Bridge. Conduct either a qualitive and quantitive risk assessment on this project. Identify the risk factors that you consider most important for the suspension bridge construction. How would you assess the riskiness of this project..
A 600 MWe power plant has an efficiency of 36% with 15% of the waste heat being released to the atmosphere as stack heat and the other 85% taken away in the cooling water.
A discharge of 2,200 ft^3/sec flows in a trapezoidal channel at a normal depth of 8.0 ft. The channel has a slope of 0.01, a 12-ft bottom width, and side slopes of 1:1 (H:V). Determine the manning coefficient of channel roughness
Determine the effective size as well as the uniformity coefficient and coefficient of curvature for each soil. Determine also the percentages of gravel, sand, silt, and clay according to (a) ASTM, (b) AASHTO, (c)USCS, and (d) the British Standard.
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