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White noise has a constant level when measured in frequency bands of constant width. Suppose a noise generator produces white noise over the octave bands 0.5,1,2,4,8 khz. Find the overall un weighted and a-weighted sound pressures if a sound pressure level of 90 dB is measured in the 4kHz octave band.
A rigid tank contains 5.56 kg of an ideal gas at 3.6 ATM and 40 degrees Celsius. Now a valve is opened and half of the mass of the gas is allowed to escape. If the final pressure in the tank is 2.0 ATM, the final temperature of the tank is?
a spherical tank aisi 302 stainless steel has an outside diameter of 40cm and a wall thickness of 2cm. it contains
a cylindrical specimen of a brass alloy 10.0 mm 0.39 in. in diameter and 120.0 mm 4.72 in. long is pulled in tension
the turbine of a large power plant receives 1.00 x 108 btuh of heat from the boiler at 900degf and rejects 5.50 x 106
determine the dimentionless parameters that characterize the average velocity of the flow in a smooth pipeline if the
Energy in the home, personal energy use and home energy efficiency. Efficient use of ‘waste' heat and renewable heat sources.
a simple torsion-bar spring has the shear stress in the steel g 80gpa shaft is not to exceed 90 mpa and the vertical
a steel wide flange beam w14 x 26 carries the load. compute the maximum deflection between the supports and at each
an elevated open stairway like the one in the sac is designed to be supported by four steel rods connecting the
The bottom of a chair (where you sit, the ‘seat’) will be injection molded by itself in a mold. Assume the chair is a disk, 24 inches in diameter and 1/10 inch thick. If the injection pressure is 1600 psi, what is the minimum clamp tonnage you need f..
an appropriate correlation for heat transfer by natural commotion from a honzontal pipe to the atmosphere isnu
A thin-walled cylindrical pressure vessel is capped at the end and is subjected to an internal pressure (p). The inside diameter of the vessel is 6 ft and the wall thickness is 1.5 inch. The vessel is made of steel with tensile yield strength and com..
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