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A 5-cm outside diameter steel pipe is covered with a 0.6-cm layer of one insulation (k = 0.17 W/m-°C) followed by a 2.5-cm layer of a second insulation (k = 0.048 W/m-°C). The pipe surface temperature, Tp, is 315 °C, and the outer insulation surface temperature, To, is 40 °C. Write an expression for the heat transfer rate per unit length, Q/L , between the pipe surface temperature and the outer insulation surface temperature. Then, find the temperature at the junction of the two insulating materials.
How do we calculate or determine the distances to stars? What units do we use and what are the limitations (if any) of the method used for such calculations?
Expalin, how is biological psychology viewed by other professionals in psychology today?
Personnel skill levels and quantities are identified by evaluating the complexity and frequency of tasks in the detailed task analysis. Job proficiency levels are established for each location where prime elements of the system are operated and where..
Is Nike’s responsibility to monitor its subcontracted factories a legal, economic, social, or philanthropic responsibility? What was it 10 years ago? What will be in 10 years from now?
Hazel has offered to pay Ruth, but Ruth always declines. One day when Hazel is feeling well, she and Ruth eat out in a restaurant, and Hazel tells Ruth she is going to leave her $50,000 in her will.
What is the long-term outlook for this group in terms of longevity and quality of life?
Motivation is an important part of any job. What can the employer and the employee do to keep motivated on the job?
What are the primary and secondary dimensions of diversity? Why is it important for police officers to be aware of both primary and secondary dimensions of diversity?
Surveys are common and often are effective techniques for conducting homeland security research because practitioners within the homeland security architecture are often spread over great distances.
Explain the relationship between the different styles of prison management and how ethical issues might differ under each style of management.
What are the steps to conducting adult, child and infant CPR?
Explain how two VPN gateways can protect against the insertion or replay of packets, even if they do not employ encryption.
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