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1. In arriving at the equation describing the motion of a vibrating string, the weight was assumed to be negligible. Include the weight of the string in the derivation and determine the describing equation. Classify the equation.
2. Derive the describing equation for a stretched string subject to gravity loading and viscous drag. Viscous drag per unit length of string may be expressed by c(∂u/∂t); the drag force is proportional to the velocity. Classify the resulting equation.
a power plant is analyzed as a simple ideal rankine cycle with a boiler operating at 300 oc. steam leaves the boiler
Consider a NACA 0009 airfoil that has a plain flap whose length is 0.2c and which is deflected 25. a. Calculate cl and cmc/4 When the geometric angle of attack is 4 degrees, what is the section lift coefficient? Where is the center of pressure?
Determine the pin force due to inertia of the driven wheel, and determine the torque on the driving shaft.
a gas is contained in a vertical frictionless pixton-cylinder. the piston m 10 kg a- 7.5 x 10-3 m2 is attached to a
the refrigerator steadily receives a power input of .15kw while rejecting energy by heat transfer to the surroundings
moist air enters a control volume operating at steady state with a volumetric flow rate of 3500 ft3min. the moist air
air flows in a round pipe at a rate of 0.015 lbmsec. the air enters the pipe at a temperature 76.8 of and a pressure
Determine the moments of inertia of the combined section with respect to its centroidal x and y axes.
engine B is supercharged with after cooling and has cylinder inlet condition of 80c and 130 k pa to avoid knock problem it is desirable to have the air-fuel temperature at the start of combustion in engine B to be the same as in engine A calculate..
Perform a detailed comparison between the two options, including but not necessarily limited to a life-cycle exergy analysis and an economic analysis accounting for purchase, installation, operating, maintenance, and disposal costs. Present your f..
the total pressure of air entering a single-stage centrifugal compressor is 1.013 bar and the total t is 288 k. the
A viscous fluid is contained between two infinitely long, vertical, concentric cylinders. The outer cylinder has a radius ro and rotates with an angular velocity v. The inner cylinder is fixed and has a radius ri. Make use of the Navier–Stokes equati..
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