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A 0.3-m3 rigid tank initially contains refrigerant- 134a at 14°C. At this state, 55 percent of the mass is in the vapor phase, and the rest is in the liquid phase. The tank is connected by a valve to a supply line where refrigerant at 1.4 MPa and 1008C flows steadily. Now the valve is opened slightly, and the refrigerant is allowed to enter the tank. When the pressure in the tank reaches 1 MPa, the entire refrigerant in the tank exists in the vapor phase only. At this point the valve is closed. Determine
(a) the final temperature in the tank,
(b) the mass of refrigerant that has entered the tank, and (c) the heat transfer between the system and the surroundings.
Estimate the maximum aggregate I/O transfer rate in this system. Hint: Only one device at a time can be serviced on a selector channel.
In how many diferent ways can the letters of the word 'LEADING' be arranged in such a way that the vowels always come together?
Determine V if the rolling resistance for a truck on concrete is1.2% of the weight and the drag coefficient based on frontal area is 0.76.
drawing upon the design principles presented in the text, describe the features of user interface that will be most important to experienced users like Norma.
Show that every 3NF schema is in 2NF. (Hint: Show that every partial dependency is a transitive dependency.)
A site with a netid of 126.5.0.0/16 uses 20 subnet routers. Suggest a suitable network mask for equally sized subnets, which allows for a degree of expansion in the future. Give an example of a host IP address at this site.
To add new menu items to an MFC application, you start by going to what view? So the menus are stored in what kind of files?
Write a simple tester program that creates a few triangles and asks them about their type.
Differentiate between the interaction types and styles that apply to multi-touch screens and applications running on them. Determine the conceptual model that you would use when designing a product for your restaurant.
You have a hard drive with 16,384 cylinders, 16 heads, and 63 sectors per track. What is the total storage capacity of this disk?
Many resources will suggest that in the next few coming years, smartphones will become the one of the most important digital devices we own. Explain the implications of this statement.
Consider a file system on a disk that has both logical and physical block sizes of 512 bytes. Assume that the each file is already in a memory. The file size is 512k and we are currently at a logical block 5 and want to access the information at o..
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