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Derive an equation that can be integrated to find the angular velocity of the bar as it passes through the vertical position. The image is of a bar that is released from horizontal rest.
The accompanying table provides additional data at the two states. It is claimed that the water undergoes an adiabatic process between these states while developing work. Evaluate this claim.
Assuming neglible heat transfer between the bucket and the environment. Find the final equillibrium temperature after quenching. Find the amount of entropy produced in the bucket.
If the parameters are the depth D of the friction layer, the length L from the leading edge, the dynamic viscosity mu, the density rho, and the free stream velocity V0, find the relative pi groups.
A Diesel cycle operates with a compression ratio of 15, and a cutoff ratio of 2.5. What is the rate of heat input required for this cycle to produce 223.8 kJ/s?
Assuming the time scale to be given by L/U, nondimensionalize this equation and indicate what the non-dimensional parameters are.
Suppose heat is transferred into the gas, so that it is 303 degrees K at location 2. Assuming the pressure is constant, what will be velocity at location 2?
Calulate the carbon content at 0.95mm below the surface of the gear after an 8 hour carburazing time. Assume the carbon content at the surface of the gear is 1.25 wt %.
Determine the critical crack length for an internal crack in a thick 2024-t6 alloy plate that has a racture toughness Kic=23.5 MPa(sqroot)m.
Air enters the jet engine at a rate of 360 kg/s. Bypass air exits at 720 m/s while combustion air exits at 1200 m/s. What is the thrust in kN of this engine?
Find the maximum static load corresponding to the yield point. What should be the length of the spring so that when it is compressed solid, the stress will not exceed the yield point?
Determine the volume of 10 kg of carbon dioxide vapor at the surface of Venus. Show the detail of solution. Make sure your pictureand are clearness and can be readed.
What is the spring rate of each? What force is required to compress the nested assembly a distance of 1 inch? Two steel compression coil springs are to be nested.
What is the distance between the hook ends if the spring is extended until the stress just reaches the yield strength?
A helical compression spring is made of No. 18 (.0147 in) wire having a torsional yield strength of 108 kpsi. It has an outside diameter of ½ in and has 14 active coils. Find the maximum stat
Determine the heat transfer and the work, in kJ / kg. Also plot the process on a p-v and a T-s diagram. Show the detail of solution.
The initial pressure of a steam turbine inlet is 162 bar. If the inlet is at the above pressure and saturated vapor, calculate the isentropic efficiency if the exit is at 1 bar and quality X = .75.
A heat transfer from the system also occurs at a temperature of 1000 K. There are no other heat transfers. Ifno internal irreversibilities are present, determing the thermal efficiency.
The surroundings at temperature T in the amouint of q. If the gas constant of the gas is R, what is the entropy change of the gas (Delta_s) during this process?
An air cored solenoid has 100 turns of wire, the core has a diameter of 2cm and the length of the winding over the core is 20cm. The resistance of the winding is 4 Ohms.
Supposedly we designed a compound microscopic imaging system that has an objective producing lateral magnification of 40x. What focal length eyepiece will produce an overall magnification of 200x?
Use Boltzmann distribution to mathematically show that a two level laser system is not possible. Calculate the ratio of number of molecules per state at the room temperature.
Find Sketch the process on a T-s diagram and a p-v diagram. The net work per unit of air in kJ/kg. Heat addition in kJ/kg. Thermal efficiency.
Sketch the process on a T-s diagram. The net work per unit of steam flow in kJ/kg. Heat transfer to steam passing through the boiler, in kJ/kg. Thermal efficiency.
Water, initially saturated vapor at 4 bar, fills a closed, rigid container. The water is heated until its temperature is 400 degrees celsius. Determine the work done and the heat transfer.