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Because of the large number of devices in today's PC chips, finned heat sinks are often used to maintain the chip at an acceptable operating temperature. Two fin designs are to be evaluated, both of which have base (unfinned) area dimensions of 53 mm X 57 mm. The fins are of square cross section and fabricated from an extruded aluminum alloy with a thermal conductivity of 175 W/m. K. Cooling air may be supplied at 25°C and the maximum allowable chip temperature is 75°C. Other features of the design and operating conditions are tabulated.
Determine which fin arrangement is superior. In your analysis calculate the heat rate, efficiency. and effectiveness of a single fin, as well as the total heat rate and overall efficiency of the array. Since real estate inside the computer enclosure is important, compare the total heat rate per unit volume for the two designs.
a company produces three electrical products-clocks radios and toasters. these products have the following resource
Calculate the mean, median, mode, variance, and standard deviation for the numeric data.
Many software companies, after years of providing unlimited free telephone technical support for their products, began to charge for these services (typically after an initial start-up period of 90 days). Most companies offer two pricing plans.
Use the Euler's theorem and derive the relationship between the marginal rate of technical substitution and the marginal products of labor and capital for Cobb-Douglas production functions.
Problem: A sector with central angle θ is cut from a circle of radius R = 6 inches (see figure), and the edges of the sector are brought together to form a cone. Find the magnitude of θ such that the volume of the cone is a maximum.
Calculate the cost of each individual sale separately using LIFO procedures. The firm uses the perpetual inventory system, and there are 52 units of the item on hand at the end of the year. What is the total cost of the ending inventory according ..
Heating is effected in a gas-fired furnace, where products of combustion at T8 = 800°C maintain a convection coefficient of h = 250 W/m2 · K on both surfaces of the plate. How long the plate should be left in the furnace?
Question 1: Baseball stadiums vary in age, style, size, and in many other ways. Fans might think of the size of the stadium in terms of the number of seats; while the player might measure the size of the stadium by the distance from the homeplate ..
waiting time T between successive occurrences of an event E
Suppose you want to compare the amount of student loan debt for males and females at StatCrunch U. The null hypothesis for this problem would be that there is no difference in the mean amounts of student loan debt for males and females and the alt..
Write a closed form expression terms of n and simplify your expression - Write down the set P
What is the meaning of "Nyquist rate", and what is the Nyquist rate for this signal discuss if the original signal x(t) can be perfectly reconstructed from z(t).
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