Answer and Explanation:
In thermodynamics, the overall heat transfer coefficient also referred as film effectiveness is a constant of proportionality between force drive for the heat flow and the heat flux.
It gives the measure of the heat transfer as a result of convection or conduction. The coefficient of overall heat transfer depends on surface area, resistance of the material, temperature difference, thickness, etc.
It is given by:
Q = UA
where
U = overall heat transfer coefficient
Its SI units is 
.
I think it would be the resistor?
Question:
Which statement best explains how Sarah Zielinski introduces and develops her points in the article about Henrietta Lacks?
- Zielinski explains how her interest in the Henrietta Lacks story began then provides details about the first immortal human tissue sample and tells why it has been both important and controversial.
- Zielinski explains the need for using human tissue samples then introduces Rebecca Skloot who gives an account of her experiences of researching the origin of the HeLa cells.
- Zielinski explains how the first immortal human cells were found then provides Rebecca Skloot’s answers to questions about the importance of using human tissue samples, the Lacks family’s responses to learning of its link to the HeLa cells, and the issues arising from their discovery and use.
- Zielinski explains the importance of the first human tissue samples to life and their widespread use, the reason for the confusion about those samples as well as the ethical issues faced by the Lacks family after learning they had not shared in profits from the sale of the HeLa samples.
Answer:
The correct answer is number 3
Explanation
The article devotes the first three sentences to describing how the Immortal cells came to be. In sentence 4, she makes reference to a book by Rebecca Skloot titled <em>The Immortal Life of Henrietta Lacks. </em>The book explains the history of Henrietta's cells and its impact on Henrietta's family as the medical world.
Cheers
Answer:
Set point
Explanation:
PID control compares a measurement to a specified set point. The difference between those values is input into tuning parameters that send a signal to the process to make the correction.
