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Question: Aluminum fins with triangular profiles shown in the accompanying figure, are used to remove heat from a surface whose temperature is 150°C.11te temperature of the surrounding air is 20°eThe natural heat transfer coefficient associated with the surrounding air is 30 W/m • K. The thermal conductivity of aluminum is k 168 W/m • K. Using manual calculations, determine the temperature distribution along a fin. Approximate the heat loss for one such fin.
Each wood railroad tie supports part of the weight of a train (plus the relatively small weight of a section of rail). This is modeled with two point loads representing the force of the rail on the tie.
Show whether the Romulans have discovered how to build steam engines that violate the second law of thermodynamics.
the state of stress at a point is shown on the element. determine a the principle stress and b the maximum in-plane
propane in a steel bottle of volume 0.1 m3 has a quality of 10 at a temperature of 15 c. use the generalized
A cylindrical specimen of a brass alloy having a length of 60 mm (2.36 in.) must elongate only 10.8 mm (0.425 in.) when a tensile load of 50,000 N (11,240lbf) is applied.
A glider w ith mass m = 0.20 kg sits on a frictionless horizontal air truck, connected to a spring w ith force constant K = 5.00 N/m. You pull on the glider, stretching the spring 0.100m, and then release it w ith no initial velocity.
The permeability in the reservoir is a constant 200 mD. The pressure in the reservoir is 3000 psi. The reservoir is 100 m thick. A 6-inch well is drilled through the reservoir, which has two effects. First, the rock within 5 ft of the well is damaged..
Why don't lawn mowers require a battery? Explain how the spark is generated to ignite the air-fuel mixture. What is the purpose of the carburettor? Explain how it works. How is the Venturi Effect utilized?
a solar updraft tower is a large chimney which ventilates heated air from the area surrounding it. this air has been
Atmospheric pressure is101.3 kPa (or else 14.69 psi). You take a vessel, and pressurise it to 350 kPa (or 50.75 psi) above the atmospheric pressure, and connect pressure gauges to the vessel, calculate What is the gauge pressure? What is the absolute..
if an object has a density of 17 slugsft3 what is its density in si units and would it be able to float?if the maximum
steam flows steadily through an adiabatic turbine.the inlet conditions of the steam are 6 mpa400 degree celcius and 80
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