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An electronic chip internally generates 1.5 Watts of heat energy that must be dissipated to ensure its reliable operation. A fan, with an exposed area of 10cm^2 is attached to the chip so the heat can be transferred away by convection. Given the surrounding air temperature is at 15 C and the heat transfer co-efficient of the fan is 50 W/m^2/K, what temperature will the chip be operating at when the fan is transferring the required 1.5 W.
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A bridge has cylindrical piers 1 m in diameter and spaced 15 m apart. Downstream of the bridge where the flow disturbance from the piers is no longer present, the flow depth is 2.9 m and the mean velocity is 2.5 m/s.
A simple supported beam 6m long is composed of two C200x28 channel RIVETED FRONT TO FRONT . What uniformly distributed load can be carried in addition to the weight of the beam w/o exceeding a flexural stress of 125MN/m^2
Consider a 2D triangular element with the three vertices at 1[1,1], 2[1,2] and 3[2,2]. the displacements at these t hree points are [0.1,0.1], [0.3,0.2] and [0.4, 0.3] mm for point 1,2,and 3 respectively
If 0.100 mol each of SO2 and NO2 are placed in a 500 mL vessel at this temperature, what are the concentrations of the reactants and products when equilibrium is established for this reaction?
At what point on the expressway should the motorist step on her brakes in order to reduce her speed to the maximum allowable on the ramp just before entering the ramp
Anna is thinking of changing her cell phone service, and she is comparing three plans: 1. Plan 1 has a $20/month access fee, unlimited nights and weekends, 300 anytime minutes plus
The section of the plywood in the 3rd quadrant is sawed off and the resulting piece is then glued squarely over the 4th quadrant portion of the plywood with glue of negligible weight.What are the x- and y-coordinates of the resulting center of gra..
Consider the simply supported beam that has one external load applied to it. At a cross- section that cuts through the carriage bolt, there are 5 points at which the states of stress must be identified.
The arrival rate at a parking lot is 6 veh/ min. Vehicles start arriving at 6: 00 P. M., and when the queue reaches 36 vehicles, service begins. If company policy is that total vehicle delay should be equal to 500 veh-min
Consider your cooking gas contains 80% propane and 20% butane. While burning on a cooktop, assume it burns with 200% excess air. If no heat is lost, determine the maximum possible flame temperature.
This uniformly reduces 4X10-4 cm / s to a depth of 22 meters. If the water level is about 3 feet below the surface, determine the saturated hydraulic conductivity of the layer.
A well-mixed sewage lagoon (a shallow pond) is receiving 430 m^3/d of sewage out of a sewer pipe. The lagoon has a surface area of 10 ha (hectares) and a depth of 1 m. The pollutant concentration in the raw sewage discharging into the lagoon is 18..
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