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Air at standard temperature and pressure flows through a horizontal galvanized iron pipe at a rate of 4.0 ft3/s. The pressure drop must not exceed 0.75 psi per 100 ft of pipe (and naturally we want to design the most economic pipe). What diameter should this pipe be?
A thin electric heater is wrapped around a rod of diameter 3 cm. The heater dissipates energy uniformly at a rate of 1300 W/m. Air at 20°C flows normal to the rod with a velocity of 15.6 m/s. Determine the steady state surface temperature of the h..
the central cubical area of an office building at sea level has a floor area of 4000 ft2 and is occupied by 30 people
Aim of this demonstration is to use measurements of the load required to propagate a crack (tear) in packaging tape to determine its fracture toughness and Describe the fracture behaviour of the insulation tape loaded with a small crack. Explain w..
a train which is traveling at 80 mihr applies its brakes as it reaches point a and slows down with a constant
consider the 2-dimensional flow field for which uaxy vby2 where a1m-1 x s-1 b-0.5m-1 x s-1 and the coordinates are
apply risk management techniques all steps learned in the class to analyze the failure and what could have been done to
there is a bar leaning on a perfect half cylinder with radius r. the end of the bar touching the ground is pulled with
Your engineering firm decides to build a prototype, and needs screw and nut fasteners as well as resistors and LEDs. There are machinists and electronics technicians available for in-house production. What is the most cost-effective way of acquiri..
suppose an external torque t1 is applied to shaft 1 which has polar area moment of inertia j1. gear 1 is mounted on
a refrigeration cycle having a coefficient of performance of 3.0 maintains a computer laboratory of 18oc on a day when
in usa 53 of total electric power is currently generated by coal-fired power plants. typically generation of 1 kwh of
A heat engine (HE) of 35 % thermal efficiency is used to drive a refrigerator having a COP of 4 , what is the heat input into the engine for each MJ removed from the cold body by the refrigerator? If this system is used as a heat pump, how many MJ of..
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