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River models are used to study many different types of flow situations. (See, for example, Video V7.12.) A certain small river has an average width and depth of 60 ft and 4 ft, respectively, and carries water at a flowrate of 700 ft3 /s. A model is to be designed based on Froude number similarity so that the discharge scale is 1/250. At what depth and flowrate would the model operate?
determine the stiffness and mass of the absorber. Also find the amplitude of vibration of the absorber mass.
a mixing chamber operated at 300 kpa pressure and is designed to mix a stream of steam with a stream of water. steam at
Determine the adiabatic flame temperature for the stoichiometric combustion of propane in air. Use a heat of formation of propane of -44,800 Btu/lb-mole
To compare the maximum temperature each surface reaches for a given input power when in free convection.
Define the term duty cycle. How does a welder know what type of electrode he/she is using? What is arc blow? What special precautions must be taken if the welding leads must be temporarily run across an aisle
To set up and solve the equations of motion using rectangular coordinates. The 3-kg collar shown has a coefficient of kinetic friction μk=0.205 with the shaft. The spring is unscratched when s=0 and the collar is given an initial velocity of v0=15.1..
Calculate the fluid horsepower to 2 decimal points for the situation given below. The formula for fluid power from a 100% efficient motor is:
an oxygen enrichment device is needed for people with impaired respiratory systems. to design such a device it is
steam at 10 psia with a quality of 0.90 enters an adiabatic steady-flow compressor at a rate of 50 lbms. the steam
a 32000 kg airplane begins to climb at an angle of 3 degrees. its initial speed is 150 ms and after one minute its
Water drains from a catch basin (with negligible water depth) through a 20-cm diameter, 40 m long concrete pipe flowing full with a surface roughness of 1.2 mm and a downward slope of 2o. Determine the flow rate (volume flow rate) of water from the c..
Find the angular velocity of the rigid two-wheel system shown in Figure 11.27, assuming that both wheels roll without slipping at rate ? and R2 > R1. (Assume the wheels are fixed to the axle.)
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