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A spring-mass is excited by a force F= sin(wt) . At resonance, the amplitude is measured to be 0.8 cm. At 0.85 resonant frequency, the amplitude is measured to be 0.6 cm. Determine the damping factor (zeta) of the system.
A battery of silicon photocells mounted on a plane surface operates with an efficiency of 16.7% under all conditions encountered in this problem. it is installed at a location 45 degrees north. the time is 10:00 on April 1, 1995. When the battery fac..
a mass of 0.20 kg of saturated refrigerant-134a is contained in a piston-cylinder device at 200kpa. initially 75 of the
the system is released from rest with the cable taut. neglect the small mass and friction of the pulley and calculate
Methane (CH4) at 258C, enters the combustor of a simple open gas turbine power plant and burns completely with 400% of theoretical air entering the compressor at 258C, 1 atm. Products of combustion exit the turbine at 5778C, 1 atm.
this would provide you with a set of Reynolds numbers. Next, using the integral method, determine the velocity profiles within the boundary layer to be followed by determination of the heat transfer coefficient values for your selected Reynolds numbe..
Plot the curve of system potential versus electrolysis time.
Find the shear flow acting in each web/skin segment in the structure. As part of your final answer, in a sketch, clearly illustrate the resultant shear flow acting in each segment of the wall indicating its numerical value and direction.
an air-hockey puck has a mass of 0.01 kg and a diameter of 90 mm. when it is placed on the air table an air film of
a piston-cylinder device initially contains .35 kg steam at 3.5 mpa super-heated by 7.4 c. now the steam loses heat to
1 given nitrogen n2 gas within a piston-cylinder assembly undergoes a compression from p1 0.2 mpa v1 2.75 m3 to a
given the velocity field v 10x2 y i 15 y z j - 3xy-25t k finda the acceleration of a fluid element at a point 12-1 at
A 12-ft^3 rigid tank contains refrigerant-134a at 40 psia and 55 percent quality. Heat is transferred now to the refrigerant from a source at 120 °F until the pressure rises to 60 psia. Assuming the surroundings to be at 75 °F, determine the a) amoun..
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