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Determine the dimensions of the best cross section if the channel shape is (a) circular of diameter D, (b) rectangular of bottom width b, and (c) trapezoidal of bottom width b.
If the flow rate is to reach 200 m3/min when the channel is full, determine the minimum elevation difference across the channel.
The 2 kg slender bar is supported by cord BC and then released from rest at A. Determine the initial angular acceleration of the bar and the tension in the cord.
Determine the magnitude of the acceleration of the mass center and the angular acceleration of the beam at this instant.
Determine T2, in K, assuming variable specific heats (c) The work, in kJ/kg, assuming variable specific heats (d) Recalculate part (b) and (c) assuming constant specific heats.
A volumetric flow rate of 3 L/s, while the second stream has a temperature of 15C, a relative humidity of 80% and a volumetric flow rate of 1L/s. Calculate the third stream's temperature and relativ
Sketch the thermal circuit for the system. Calculate the heat loss per meter of the pipe. Calculate the surface temperatures T1, T2 and T3. Calculate the overall heat transfer coefficients, Ui and U
An earth orbit has a perigee radius of 7000 km and a perigee velocity of 9 km/s. Calculate the change in apogee radius due to change of 1 km in the perigee radius.
Determine at steady state the instantaneous rate of heat transfer, in Btu/h per ft^2 of surface area, and the temperature in degreeR, at the interface between the brick and the insulation.
Determine (a) the analysis in terms of mass fraction (b) the partial pressure of each component, in MPa. (c) the volume occupied by 50 kg of the mixture, in m^3.
If the air in the room is at 21°C, what is the maximum relative humidity the air can have before condensation occurs on the wall?
Starting with the definition of capacitance, c= q/vc, find the capactence of these electrodes 2) how do i solve a 2nd order nonhomogeneous IVP using LAPLACE?
Water is added to the vessel until the air is saturated at 20°C. Determine the (a) mass of water added, in kg. (b) final pressure in the vessel, in bar.
Determine the humidity ratio of the entering air mixture. The rate of heat transfer to the moist air passing through the heating section in kJ per kg of mixture.
Why must one consider the average degree of polymerization and the average molecular weight of a thermoplastic material? Define the average molecular weight of a thermoplastic.
Determine the mole fractions of polyvinyl chloride and polyvinyl acetate in a copolymer having a molecular weight of 11,000 g/mol and a degree of polymerization of 150.
Develop a preliminary design for a power plant to produce 1000 MW of electricity using water as the working fluid and a supercritical pressure of 24 MPa.
Determine: A) The best location in the swing to strike the ball. Assume the spring is unwound when its angle is zero and the machine only allows a rotation of 180 degrees.
Assume that the water in the products is all in vapor form. Determine the rate of heat release from the combustion process.
At the final stated determine (a) the pressure, (b) the quality and (c) the enthalpy. show the process on a T-v diagram.
Determine the temperature at which the liquid in the tank is completely vaporized. Show this process on a T-v diagram.
The two distributed load forces each act over 4.5m of the length of the beam. The beam is fixed to a wall at A and rest on a roller at B. Draw the shear and moment diagrams for the beam.
If 7% of the power generated is consumed in running the auxiliaries of the plant and the overall plant efficiency is 34%, find the percentage of energy lost in the condenser.
It uses 9800 tonnes of coal of heating value 26 MJ/kg per day. The steam generator efficiency is 86%. Caluculate the gross and net station heat rates and efficiencies.
Determine the volume occupied by 100 kg of this mixture when its pressure is 3 MPa and its temperature is 37 degrees C.