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Steam is expanded from 12.5 MPa and 900 degrees Celsius to 0.30 MPa, 400 degrees Celsius in an adiabatic turbine. The mass flow rate of the turbine is 20 Kg/S.
(a) Determine the rate of entropy generation S gen. in the turbine in Kw/K
(b) Determine the power output by this turbine in Kw.
(c) Determine the isentropic efficiency of this turbine.
The energy flow per unit time per unit area (S) of an electromagnetic wave has an average value of 601 mW/ m2
A simple circuit is set up that only consists of a 12 V battery connected to a light bulb with a resistance of 9 Ohms. What current flows through the light bulb
An object is being pushed up an inclined plane with a constant force F = 100. N. The plane makes an angle of 30.0° with respect to the horizontal, What is the mass of the object
a soil below the water table has a density of 120 lb/ft^3 and a void ratio of .82. determine the specific gravity of solids
The gearshift lever AB for the transmission of a sports car has position vector r whose line of action passes through points A and B. The driver applies the force F to the knob B of the lever to shift gears. Find out the magnitude of the component..
A man of mass 86.5 kg and density 970 kg/m3 stands in a shallow pool with 39.1 % of the volume of his body below water
A Hollywood daredevil plans to jump the canyon shown in the figure on a motorcycle, what is the correct angle for his launch ramp (deg) and What is his correct launch speed
A man pushes a lawn mower on a level lawn with a force of 189 N. If 38% of this force is directed downward, how much time is spent in pushing the mower this distance
Estimate the force P to accelerate the 80 - Ib block at 6ft/sec2 to the right.
Two forces, F1 vector and F2 vector, act at a point. F1 vector has a magnitude of 8.40N and is directed at an angle of 65.0 degrees above the negative x axis in the second quadrant. What is the magnitude of the resultant force
A 24-V battery is connected in series with a resistor and an inductor, with R = 9.0 ? and L = 7.8 H, respectively, Find the energy stored in the inductor when the current reaches its maximum value
Neil A. Armstrong was the first person to walk on the moon. The distance between the earth and the moon is 3.85 ? 108 m. Find the time it took for his voice to reach earth via radio waves
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