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Question: A spherical tank (k = 15 W/m·K) with an inner diameter of 3 m and a wall thickness of 10 mm is used for storing hot liquid. The hot liquid inside the tank causes the inner surface temperature to be as high as 100°C. To prevent thermal burns on the skin of the people working near the vicinity of the tank, the tank is covered with a 7-cmthick layer of insulation (k = 0.15 W/m·K) and the outer surface is painted to give an emissivity of 0.35. The tank is located in a surrounding with air at 16°C. Determine whether or not the insulation layer is sufficient to keep the outer surface temperature below 45°C to prevent thermal burn hazards. Discuss ways to further decrease the outer surface temperature. Evaluate the air properties at 30°C and 1 atm pressure. Is this a good assumption?
take a position on the following statement mainframe computers are still needed even though personal computers and
Determine the type of evaluation method to use in a Web design for the best user experience. Provide key details of how the mobile self-service will be implemented on various mobile devices.
Create the context diagram for the system just described. Create the DFD fragments for each of the four use cases outlined in part a, and then combine them into the level 0 DFD.
What I need help with is to get the dice to roll 100 times instead of just one. So read file results will show the results of 100 rolls of the dice. The file tab also has instructions as to how program should work.
Consider an axisymmetric blunt-nosed vehicle entering the Earth's atmosphere. At 60,000 m altitude the velocity is 6100m/s.
An advantage of dynamic scoping is that access to nonlocal variables is considerably faster than accesses to nonlocals when static scoping is used.
List the four design models required for a complete specification of a software design and the role of each.
Write a program that creates a histogram that allows you to visually inspect the score distribution of a set of students. The program should prompt the user.
What is the purpose of the program counter? What does a sequence controller do?
Build a class known as Rational for carrying out the arithmetic with fractions. Write down a driver program in order to test your class. Addition of the two Rational numbers. Result of addition must be stored in reduced form.
explain the advantages and disadvantages of supporting links to files that cross mount points (that is, the file link refers to a file that is stored in a different volume).
with the parameters set forth at the onset of the project present the infrastructure and security policy that will
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