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If the Kansas City Building Code specified that a floor structure must support a live load of 4.79 kPa (100 psf), and if the walkway length L = 9.1 m = 30.0 ft and width b = 2 m = 6.56 ft, what contribution is made to the hanger rod load P?
Annular fins are integrally cast with the cylinder to increase heat transfer to the surroundings. Consider five such fins, which are of thickness t = 6 mm, length L = 20 mm, and equally spaced. What is the increase in heat transfer due to use of th..
A hydraulic lift must lift 7000 lbs using oil that is under pressure of 130 lbs/in^2. what must be the surface area of the lift cylinder?
A robot arm carrying a 2.75-lb package is moving in a horizontal circle at 4 miles/hr. The arm is gradually shortened for the first 0.11 s of its motion, changing the radius of the circle. The maximum acceleration the package can withstand without da..
what is the pressure difference over the manometer in newtons per meter?
a piston-cylinder device contains 1 kg of h2o. the water is at 800oc and a pressure of 20 mpa. heat transfer occurs
a 3-diameter 5-long gas-piston assembly contains air at stp. stp standard temperature and pressure conditions 300k and
air flows through a nozzle at high velocities such that compressible flow effects are important. the air exits the
Assuming the plant operates on the ideal vapor-compression cycle using refrigerant 134-a between the pressure limits of 120 and 700 kPa, determine - The mass flow rate of refrigerant
1. Calculate the critical heat flux on a large horizontal sur- face for the following fluids at 1 atm: mercury, ethanol, and refrigerant R-134a. Compare these results to the critical heat flux for water at 1 atm.
It is required to evaluate the effects of changing surface condenser size on power plant performance. Consider for simplicity an ideal rankine cycle without feed water heaters. the turbine inlet steam is saturated at 1000 psia and has a mass flow rat..
Ten cubic feet of air is cooled at a constant pressure of 80 psi. The initial temperature is 180 0F and the final temperature is 100 0F. Assume air is an ideal gas, Cp = 0.241 Btu/lb 0R and Cv = 0.173 Btu/lb 0R and R = 1545 lbf/lbmol 0R, M = 28.97 lb..
Draw a sketch of the engine block of the three-cylinder radial engine of Fig. 10.37, and show vectors of forces imposed on the block by the reciprocating inertia forces of the slider-crank mechanisms.
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