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A 2.64 kg copper part, initially at 400 K, is plunged into a tank containing 4 kg of liquid water, initially at 300 K. The copper part and water can be modeled as incompressible with specific heats of 0.385 kJ/kg. K and 4.2 kJ/kg.K, respectively. For the copper part and water as the system, determine (a) the final equilibrium temperature (K), and (b) the amount of entropy produced within the tank, in kJ/K. Ignore heat transfer between the system and its surroundings.(with sketches)
The vibrations of an engine mount are to be monitored by an accelerometer which can be treated as a second-order system. It is expected that the vibrations will not exceed 1 kHz. If you have an accelerometer that has a ringing frequency of 20 kHz and..
It is desired to design a wind turbine that will output 2MW of peak electrical power at a location where the average wind speed is 10 m/s and the average ambient conditions are 85 kPa and 5 ?C. What should the rotor blade length be if the aerodynamic..
consider the sysstem shown in figure 3-45 where m 2 kg b 4 nxm and k 20 nm. assume that x0 0.1 m and xdot0 0. the
how to calculate the following a hydrogen partial pressure in the humidified fuel gas b oxygen partial pressure in
a natural gas-fired furnance in textile plant is used to provide steam at 130c at time of high demand the furnace
a what is the approximate ductility el of a brass alloy that has a yield strength of 275mpa? what is its tensile
a scuba diver has a tank with an internal volume of 2500 cm3 air tank which is pressurized to 22 mpa at 27 deg c. after
a fire hose nozzle has a diameter of 1.500 in. according to some fire codes the nozzle must be capable of delivering at
Air in a piston-cylinder device is compressed from an initial state (temperature = 80 C, pressure = 100 kPa, volume = 0.3 m3) to a final state (temperature = 250 ?C, pressure = 600 kPa), during a polytropic process (n = 1.28094065700868). What is the..
an air-standard brayton cycle is utilized as a jet propulsion engine. the aircraft flies at an altitude of 5000 m at a
The capillary rise, h, of a liquid in a tube varies with tube diameter, d, gravity, g, fluid density, roe , surface tension, Y, and the contact angle, B. (a) Find the dimensionless form of this statement. (b) If h = 3 [cm] in a given experiment, what..
A cylindrical wooden storage vat has a 20 ft outside diameter. It is filled with 24 feet of brine with a specific gravity of 1.06. The wooden staves making up the vat are bound by flat steel bands evenly spaced vertically around the tank. Each band i..
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