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1. Write the Euler equations in the 2D r-θ coordinate system.
2. The incompressible, steady-state, 2D momentum equation in the x direction (without body forces) is
Derive the nondimensional form of this equation by using the following characteristic quantities for the dimensional analysis:
If the spring of modulus k is unstretched when C is coincident with A, determine the tension T required to hold the bar in the 45° position shown. The diameter of the small pulley at D is negligible.
a frictionless piston-cylinder device initially contains 20 kg of saturated liquid refrigerant-134a. the piston is free
an inventor claims to have perfected an engine which will produce power from energy transferred as heat from a 1300 k
a gas in a piston-cylinder device is compressed through a combination of external force on the piston and cooling in
a 3 m x 3 m x 2.4 m room losses heat through the walls at a rate of 520 w. determine the final temperature of the room
Determine the moment of inertia Ix of a parabolic spandrel of base b and height h with respect to its base (see Case 18, Appendix D).
Assume that the electromagnetic torque is equal to its commanded value, that the load torque is zero, and that the combined inertia of the electric machine and load is J.
the number of vacancies present in some metal at 857degc is 1.7 x 1024 m-3. calculate the number of vacancies at
A fuel consisting of 20% ethanol and 80% isooctane on a molar basis is burned with air in an engine. Write the balanced chemical reaction when this reaction is stoichiometric. What is the air-fuel ratio?
a flat-bottomed barge 25 m long and 10 m wide submerged to a depth of 1.5 m is to be pushed up a river at a rate of 8.6
design a closed-system air-standard gas power cycle composed of three processes and having a minimum thermal efficiency
u.s. energy use was approximately 100 quads quadrillions btu in 2008. about 85 of this energy was supplied by burning
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