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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.
a section of highway has the following flow- density relationship: q= 50k - 0.156k^2 what is the capacity of the highway section, the speed at capacity, and the density when the highway is at one-quarter of its capacity
Calculate the stress at failure of a concrete test cylinder with a measured diameter of 152.4 mm and a recorded load of 371,426N. Units of ksi.
water flows through a horizontal plastic pipe with a diamter of .2 m at a velocity of 10 cm/s. determine the pressure drop per meter of pipe using the Moody chart.
The brush is immersed in the first volume and agitated until equilibrium is established, removed and the exercise is repeated with the second volume. Assume that the solvent remaining in the brush after it is removed from the first batch is insign..
The beam is subjected to a force F=825 lb in the direction, and is supported by a pin connection at point B and a rope attached through a pin connection at point A. Problem #1: Draw a complete FBD of the beam.
What is your recommendation for the maximum size of coarse aggregate for the following situation?
The coal may either be moved by train from the mine to power plants near where the power is used, or the coal could be combusted near the mine mouth to generate electricity and the electricity could be transmitted over long distances to the users.
that acts at a 45 degree angle from the side of the footing (it acts diagonally across the top of the footing) determine whether the resultant force acts within the kern. If it does, then compute the bearing pressure at each corner of the footing.
A four lane freeway (two lanes in each direction) operates at capacity during the peak hour. It has 11-ft lanes, 4-ft shoulders, and there are three ramps within three miles upstream of the segment midpoint and four ramps within three miles downst..
Describe the application of geophysical techniques using electromagnetic induction as a tool for sustainable soil and water management of agricultural fields in the humid tropic Caribbean 300 word limit.
If the amount of heat transfer in the HE unit is 2460 kJ per kg of steam, what is the magnitude of shaft work obtained from the turbine in kW?
Did the moslem caliphates contribute to the fall of rome? if so how?
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