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(See Fluids in the News article titled "Bow Thrusters," Section 5.2.2.) The bow thruster on the boat shown in Fig. P5.80 is used to turn the boat. The thruster produces a 1-m-diameter jet of water with a velocity of 10 m/s. Determine the force produced by the thruster. Assume that the inlet and outlet pressures are zero and that the momentum of the water entering the thruster is negligible.
If the mean temperature in the chamber is 811 K and the pressure ratio of expansion in the turbine is 4:1, calculate the isentropic enthalpy drop in the turbine per unit mass of gas.
Determine the maximum shear stress developed in the shaft.
A 7in diameter cylindrical scuba tank made from steel is being designed for an internal pressure of 1600 psi. The allowable stress of the steel is 35 ksi in tension and 16 ksi in shear. Calculate the minimum wall thickness assuming a factor of safety..
the average january temperature for rome italy is 44.2 degf and the average july temperature is 74.8 degf. how much
An air bubble with a radius of 0.5 cm is released from the regulator of a scuba diver swimming 30 m below the sea surface. Estimate the radius of the bubble just before it reaches the water surface. Assume that the pressure inside the bubble is equal..
A model of an airplane is to be tested at 20°C in a wind tunnel. The model is built to 1/12th scale. In order to match both the Mach number and the Reynolds number of the plane, the wind tunnel is pressurized. To what pressure (in atm) should the air..
an ideal diesel cycle has a maximum cycle temperature of 2300degf and a cutoff ratio of 1.4. the slate of the air at
Derive a counterpart for the case of plane strain in the xz-plane of the compatibility equation shown in Problem 4.15 for plane stress. How does this plane strain result differs from the compatibility equation for plane stress?
we have a laminar fully developed channel flow of water with density 1000 kgm3 and kinematic viscosity 1.3x10-6 m2s.
liquid chromatography lc flow can be model as a packed bed and is described by the ergun equation. lc systems are often
A timber power-line pole is 10 in. in diameter at its base where it is solidly embedded in concrete. - Calculate the maximum bending stress and the maximum shear stress produced in the pole.
air expands in a piston-cylinder device with a polytropic exponent of 1.3. the initial pressure and temperature were
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