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A vertical array of circuit boards is immersed in quiescent ambient air at T∞ = 17°C. Although the components protrude from their substrates, it is reasonable, as a first approximation, to assume fla plates with uniform surface heat flux q"s. Consider boards of length and width L = W = 0.4 m and spacing S = 25 mm. If the maximum allowable board temperature is 77°C, what is the maximum allowable power dissipation per board?
the equilibrium constant K for the reaction - what is the concentration of SO3 at equilibrium?
Determine the apparent power and the reactive power drawn by the load.
what is the state of the steam leaving the heating coils of the evaporator? For a surroundings temperature of 300 K, make a thermodynamic analysis of the process.
What is the mass of the water in the container, assuming that all the heat lost by the copper is gained by the water?
Determine the acceleration potential (in Volts) that must be applied to electrons so that in an electron diffraction experiment of {200} planes of silver, Ag, they will result in first order diffraction at 2?
Calculate the change in output voltage for a 1658 change in the angle of the knee. Assume that a constant current of 7 mA is supplied to the transducer.
This solution is then reacted with an acidic solution containing periodate ion; the products are the permanganate and iodate ions. Write balanced chemical equations for both these steps.
A mixture of acetone and isopropanol containing 50 mol% acetone is to be distilled continuously to produce an overhead product containing 80 mol% acetone and a bottoms containing 25 mol% acetone. If a saturated-liquid feed is employed, if the colu..
Calculate the volume of blood in the rat. What assumptions must be made in performing this calculation?
A coin that has probability of heads equal to p is tossed successively and independently until a head comes twice in a row or a tail comes twice in a row. Find the expected value of the number of tosses.
Isophthalic acid (IPA, formula HOOC-C6H4-COOH) is made by oxidation of m-xylene with air. The reaction is carried out in acetic acid solvent at about 200 °C using a cobalt-manganese catalyst promoted by bromine.
What is the potential difference between the starting point and the top point of the trajectory?
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