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Angular Momentum of a Particle A particle P with mass m is moving such that its position vector has the components x = aθ3, y = 2aθ, z = 0, where θ = θ(t). Determine the angular momentum of the particle about the point B (0, a, 0).
Steam at a pressure of 14.7psia and a temperature of 320deg F enters a diffuser inlet at a velocity of 500ft/s. The steam decelerates in the diffuser to a velocity of 100ft/s. The steam leaves the diffuser as saturated vapor at 240 deg F. The area of..
an insulated tank containing 0.4 m3 of saturated water vapor at 500kpa is connected to an initially evacuated
Derive expressions for the critical Rayleigh numbers associated with the cylindrical and spherical geometries, Rac,crit and Ras,crit, respectively, below which keff is minimized.
Figure P7.1 shows a schematic diagram of a stepper motor. What type of stepper is this? Describe the operation of this motor. In particular, discuss whether four separate phases are needed or whether the phases of the opposite stator poles may be ..
a. What is the melting point at standard conditions for ammonia? Boling point is given -33.4C. b. What is the enthalpy change for boiling ammonia at 0C?
A particle slides freely on a flat surface, attached to a mass less string that passes through a hole in the surface. At a given moment, the particle is moving in a circle of radius r0 with angular velocity w0. Assume that the string is pulled throug..
Hot water is provided to a house by an electric water heater which uses a 60L tank. The electric heater is rated for a 1.6kW. The hot water tank is completely full with water at 80°C when someone starts a shower. The shower faucet mixes cold water at..
Calculate the cost per piece of a milling operation that is used to machine a pocket of 2”x3”x0.5” (LxWxD). The material being machined is high silicon aluminium. The tool material is PCD.
Employing the intercept technique, determine the average grain size for the steel specimen whose microstructure is shown in Figure 9.25(a); use at least seven straight-line segments.
A sheet of epoxy reinforced with 60% unidirectional E-glass fibers, where x is the fiber direction. Strains ex= 0.0030, ey=-0.0020, and yxy = .0025 are measured. Estimate the applied stress ox, oy, txy
brass balls each of mass 0.258 kg and initially at 130degc are quenched in a water bath at 50degc for 2 minutes at a
a cruise ship is traveling at a speed of 24.0 . a speedboat with a late passenger is heading toward the cruise ship at
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