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The proposed design for anemometer to determine the velocity of an airstream in a wind tunnel is comprised of a thin metallic strip whose ends are supported by stiff rods serving as electrodes for a passage of current used to heat the strip. A fine-wire thermocouple is attached to the trailing edge of the strip and serves as the sensor for a system that controls the power to maintain the strip at a constant operating temperature for variable airstream velocities. Design conditions pertain to an airstream at T = 25C and 1 u= 50 m/s, with a strip temperature of T =35C. Determine the relationship between the electrical power dissipation per unit width of the strip in the transverse direction, P'(mW/mm), and the airstream velocity. Show this relationship graphically for the specified range of u.
the frame ACD is supported by a ball-and-socket joint at A and D and by a cable which passes through a ring at B and is attached to hooks at G and H. Knowing that the frame supports at point C a load of magnitude P=268N, determine the tension in t..
a steam power plant implements an ideal reheat rankine cycle. steam enters the inlet of the high-pressure turbine at 8
the initial temperature is t 162 c air expands as an ideal gas from 10 bar and the above temperature to 1 bar in an
Calculate the work done and the final temperature for the following processes: Polytropic, n = 1.1, 4.0 lbm of Air, T1 = 1300 °F, v1=6.519 ft3/lbm. The pressure decreases to half the initial pressure during the process.
determine the minimum mass in kg of a 24 in long tension member that must support a load of 1000 lbs manufactured from
electronic components are mounted on the inner surface of a horizontal cylindrical duct whose inner diameter is 0.2 m
the diagram shows a rigid gate oab which is hinged at o and rests against a rigid nbspsupport at b. calculate the
a power plant based on the rankine cycle is under development to provide a net power output of 10 mw. solar collectors
an injected slug of tracer material flows with its carrier fluid down a long straight pipe in dispersed plug flow. at
one process follows arrhenius behavior i.e. at a given load the inverse of time to fracture has been shown to increase
A rubber balloon has a mass of 1500 g when it is deflated, i.e., empty. When the balloon is filled up with Helium gas (He = 0.18 kg/m3 ), it takes the form of a sphere with a 4 m diameter. (V-sphere= (4/3)(pi)(r)^3) Find the net upward force on the i..
make a text file that contains what is your absolute path, and call it paths.txt
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