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Figure 9.32 shows a heat exchanger with internal fins. Compute the Reynolds number for the flow of brine (20% NaCl) at 0°C at a volume flow rate of 225 L/min inside the heat exchanger. The brine has a specific gravity of 1.10. Then, compute the energy loss over a length of 1.80 m. Assume that the surface roughness is similar to that of commercial steel pipe.
The last step is to write a main program that inputs from three binary switches and performs the three public functions
steam is to be condensed in the condenser of a steam power plant at a temperature of 60degc with cooling water from a
a hollow stainless steel sphere is 2.0 cm inner diameter and 5 cm outer diameter. a heater of 5w is sealed inside the
Determine the smallest horizontal force required to lift the 260- crate. The coefficient of static friction at all contacting surfaces is = 0.7. Neglect the mass of the wedge.
The electrons in an atom which rotate about the nucleus possess what kind of energy?
Consider the Helmholtz coil configuration shown in Fig. 2. Here R = 0.2 m,I = 10 A, and there are N = 100 windings in each coil. You can neglect the thickness of each coils windings so that its dimensions are fully specified by R.
Consider a particle of mass m moving in two dimensions between two perfectly reflecting walls which intersect at an angle alpha at the origin. Assume that when the particle is reflected, its speed is unchanged and its angle of incidence equals its an..
The following stress state exists around a wellbore drilled in the Atlantic Ocean: sigma x = sigma y = 80 bar sigma zz = 100 bar tau xy = tau xz = tau yz = 0 Pw = 80 bar. Derive the general Kirsch equation (Aaddnoy version)
ten grams of liquid water at 95 c are contained in the insulated container shown. the pin holding the frictionless
a particle moving in the x-y plane has a position vector given by r 1.31t2i 1.43t3j where r is in inches and t is in
The weight of the automobile, with the driver, is 1500 lb and the damping ratio of the suspension is to be 0.05. Use a single-degree-of-freedom model for the automobile.
it is desired to design a cooler in which the tubes are 4 mm diameter to cool 10000 kg of milk per hour from 20c-3c.
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