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The two members used in the construction of an aircraft fuselage are joined together using a 30° fish-mouth weld. Determine the average normal and average shear stress on the plane of each weld.
Sketch process on PV diagram. Draw area thatrepresents the work of the process. Calculate the work done duringthe process. How much heat was exchanged?
What is the maximum work that could be obtained if the flow rates and temperatures of the streams remain the same, but heat transfer is permitted with the surroundings at 298 K?
A piston-cylinder device containing carbon-dioxide gas undergoes an isobaric process from 15 psi and 80 F to 200 F. Determine the work and heat transfer associated with this process.
Downstream height of the water changes (1 ft) and the velocity becomes non-uniform (u=4y-2y^2). Find the initial velocity entering the channel, V.
2.6 kg of air in a stationary box undergo a process that results in 22.3 kJ of work being done by the air (say there was a combustion process).
Find the cost of the electricity in a month when the refrigerator operates for an equivalent time of 10 days continuously.
A steam turbine receives a 110 ft/s velocity and 1525 Btu/Ibm enthalpy. The steam leaves at 810 ft/s and 1300 Btu/Ibm entalpy. What is the work out in Btu per pound mass flowing?
Determine if it is safe for a 225 lb worker to stand all the way to the right of the scissor jack with it fully extended.
Steam enters a nozzle at 400C and 800kpa with a velocity of 10m/s, and leaves at 300C and 200kPa while losing heat at a rate of 25kW, for an inlet area of 800cm^2.
When [theta=2/3*pi] rad, the angular velocity and angular acceleration of the circular plate are [theta_1=1.4 ] rad/s and [theta_2..=3.5] rad/s^2 respectively. Determine the magnitude of the velocit
Determine the present worth of series of annual deposits of 2000 during years 3 through 14 and a series of withdrawals of 1900 through 3 to 10. The interest rate is 4 %.
During the compression process the change in pressure varies linearly with volume and the gas can be consirdered ideal. Determine a) the initial and final volumes b) the work done by the piston during
Suppose it is known that the graph of the function y= ax^3+bx^2+cx+d passes through four points (xi,yi), i=1,2,3,4. Write a user-defined function that accepts these four points as input.
A 40 mph wind blowing past your house speeds up as it flows up over the roof, elev effects are negligible. Determine the pressure in the roof where speed is 60mph.
The atmospheric pressure is 100 kPa. Derive and plot the variation of pressure with radius from the center. Assume no elevation change.
Which component of the ideal regenerative Rankine cycle loses the greatest amount of work potential where the ideal regenerative Rankine cycle with an open feedwater heater uses water as the working
If the guy wire can support a maximum tensile force of 500lbs, and if the pole AC can support a maximum compressive force of 800lbs before buckling, determining the largest force P that can be suppo
The external surrounding air at 300 K has a convective coefficient of 25 w/m^2 K. Calculate the fin efficiency and the heat loss from the fin per 1.0 m of length.
Calculate the entropy change and entropy production for the hydrogen gas during the process, both in KJ/K, if the boundary temperature for the gas is the same as the gas temperature throughout the p
The shaft was known to be carrying a fluctuating bending moment of 1000 N-m. Estimate the amount of torsion the shaft was also carrying.
Paddle-wheel work is used to change the state. Determine the total entropy production for the process, in kJ/K.
Determine (a.) the equilibrium temperature, in kelvins, and (b.) the entropy production for the overall process, in KJ/K. Use CO and CO2 tabular data.
What is the corresponding angular frequency? (2) What is the corresponding frequency? Show steps involved.
What is the angular displacement and its unit respectively? If an angle displacement is 90 degree, what is the corresponding angle in radians?