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Superheated steam at 8.30 kg/s, 1.00 MPa, and 400.°C enters a horizontal, stationary, insulated nozzle with a negligible velocity and expands to 10.0 × 10-3 MPa. The friction and other irreversibilities within the nozzle cause the exit velocity to be only 85.0% of that produced by an isentropic expansion. Taking the local environment (ground state) to be that of saturated liquid water at 20.0°C, determine
a. The inlet specific flow availability.
b. The exit specific flow availability.
c. The irreversibility rate inside the nozzle.
a ball is dropped with a velocity v0 at an angle a with the vertical onto the top step of a flight of stairs consisting
a state runs a lottery in which 6 numbers are randomly selected from 40 without replacement. a player chooses 6 numbers
Find expression for the isothermal compressibility and coefficient of thermal expansion for a fluid that is described by the van der waals equation of state. Expression should be in term of measurable properties.
Plot the temperature distribution T(x) in the medium at t = 325 s. The distribution should extend to a location for which T ≈ 25°C.
A reservoir discharges into a 4-inch new cast iron pipe, as shown below. Find the velocity and discharge in the pipe. Consider friction, but neglect minor losses.
Determine the angular velocity of the two 10-kg rods in Fig. 2 when , if they are released from rest in the position . Neglect friction.
in an air-standard brayton cycle air enters the compressor at 1000 lbmhr 14.7 psia and 40degf and exits at 70 psig. the
0.65m^3 rigid vessel initially contains saturated liquid vapor mixture of water at 150C. The water is now heated until it reaches the critical state. Determine the mass of the liquid water and the volume occupied the liquid at the initial state.
Define your system to be the gas in the cylinder, and calculate the work transferred from the surroundings to the system from this expansion. Note that the pressure will change as the expansion takes place.
If its velocity in this position was 600 mi/hr, calculatethe maximum additional altitude h acquired andthe corresponding time t to reach it. The gravitationalacceleration during this phase of its flight is
Considering only the moments M1 and M2, calculate the maximum tensile stress σt, the maximum compressive stress σc, and the maximum in-plane shear stress τmax at point p, which is located at support A on the side of the bracket at midheight.
A work center consisting of 7 machines is operated 16 hours a day for a 5-day week. Utilization is 80%, and efficiency is 110%. What is the rated weekly capacity in standard hours?
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