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The rate of heat loss from the turbine casing to the surroundings is 8.5 kW. Calculate (a) the mass flow rate (kg/s) of the steam, and (b) the power output (MW) of the turbine.
Find the inlet area (m2), (b) Find the velocity (m/s) and area (m^2) at a point where p2 = 20 bar, T2 = 180oC, and (c) Find the velocity (m/s) and area (m^2) at a point where p3 = 5 bar, T3 = 50oC.
He jumps so that when he lands on the sidewalk he is moving at 1.3 m/s (relative to the sidewalk). If his mass is 75 kg and the skateboard's mass is 5.0 kg, what is the final velocity of the skatebo
The truck's initial speed is about 29 m/s. If the mass of your car is 750 kg and the mass of the truck is 1250 kg, what was the speed of the truck after you hit it?
From there, it is isochorically brought to a final pressure and temperature of 10 bar and 200°C. Show the process on a P-v diagram and determine the work transfer for each process (W12 and W23).
Knowing that P must have a 750-N Component Perpendicular to member ABC, determine (a) the magnitude of the force P, (b) its component parallel to ABC.
If the mass of the cart is 100 Kg and the jet of water leaves the nozzle (of area 0.001 m2 with a speed of 35 m/s, determine the speed of the cart after the jet is directed against the cart.
A 6.0 kg ball traveling 13 m/s collides head-on with a 3.0 kg hunk of putty initially at rest. Assuming a completely inelastic collision, what is the speed of the ball just after the collision?
The power supplied to the refrigerant during compression process is 2.35 kW. What is the temperature of R-134a at the exit of the compressor?
Determine the difference in pressure just under the vessel's cover between a point on the circumference and a point on the axis.
Calculate the diffusion coefficient if the diffusion flux is 1.9 × 10-8 kg/m2·s, given that the densities of carbon and iron are 2.25 and 7.87 g/cm3, respectively.
Find the diameter of the smallest shaft that can be used, what is the maximum shear stress in the shaft of this diameter? Use G = 83 GPa for steel.
If the ultimate tensile stress of the material used is 600 MN/m2, and the efficiency of the longitudinal joint is 70 per cent, determine the factor of safety?
As the refrigerant passes through the compressor, heat transfer to the surroundings occur at a rate of 0.32 kJ/s. Determine the power input to the compressor in kW.
As it operates, the machine produces a harmonic force of magnitude 125 N. Determine the operating speeds of the machine at which the machine's steady-state amplitude is less than 0.2 mm.
If after 49.5 h the concentration of carbon s .35wt% at a position 4.0mm below the surface, determine the temperature at which the treatment was carried out.
The gas is allowed to expand until the pressure is 1 bar and the final volume is 0.02 m^3. Calculate (1) the molar mass of the gas and (2) the final temperature.
While the piston mass is 30 kg, its area is .003m^2, and the ambient pressure is 100 kPa. The pin is then removed and the H2O expands rapidly and adiabatically. What is the final state of the H2O?
Determine the required stiffness k(B) of the inner spring so that the motion of the ingot is stopped at the moment the front, C, of the ingot is 0.3 m from the wall.
The pipe is in the middle of the pillar, and is 10m long. If the pipe surface is 500K and the outside of the concrete pillar is 300K, what is the heat loss from the pipe?
The condenser pressure is 1 lbf/in2. If the turbine stages and pumps operate isentropically, determine the thermal efficiency of the cycle. You must draw a schematic for this problem.
Determine a) the flow capacity in L/min of the fan that needs to be installed, b) the diameter of the duct if the air velocity is not to exceed 4 m/s.
If the radius of gyration of the flywheel is 698 mm, calculate the average magnitude of the couple exerted on the flywheel by friction within its bearing.
Determine: a) the volume flow rate of the refrigerant at the inlet, b) the mass flow rate of the refrigerant, c) the volume flow rate of the refrigerant at the exit, d) the velocity of the refrigera
A t=10-mm-thick horizontal layer of water has a top surface temperature of Tc = - 4 C and a bottom surface temperature of Th = 2 C. Determine the location of the solid-liquid interface at steady sta