Determine the entropy production rate for the value
R-22, flowing steadily at 70 lbm/hr, enters the expansion valve of a refrigeration system as a saturated liquid at 183.09 psia. At the exit of the valve, the pressure is 31.162 psia. Determine the entropy production rate (Btu/hr-R) for the valve.
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A girl stands on a rotating merry-go-round, 2.3 m from its center. If the girl has a speed of 2.2 m/s, what is the minimum coefficient of static friction between her feet and the merry-go-round that will prevent her from slipping?
find the apparent weight of a 54-kg person in the roller coaster as it passes over the top of the hill. The apparent weight is how heavy the person feels, which is determined in this case by the normal force.
A 10 cubic foot tank is initially evacuated and is then filled from a supply line which contains R-22 at 100 psi, 100 F. Assuming no significant heat transfer.
The atmospheric sulfur dioxide (SO2) concentration over a certain region is 0.12 ppm by volume. Calculate the pH of the rainwater due to this pollutant. Assume that the dissolution of SO2 does not affect its pressure.
R-22, flowing steadily at 70 lbm/hr, enters the expansion valve of a refrigeration system as a saturated liquid at 183.09 psia. At the exit of the valve, the pressure is 31.162 psia.
Formic acid has molar mass of 46.03 g/mol and is composed of 26.1%C, 4.38% H and 69.52% O by mass. What is the molecular formula for this substance (list elements in the formula in the same order as given in the problem statement)?
The coefficient of kinetic friction between the two blocks is 0.300, and the surface on which the 8.00 kg block rests is frictionless. A constant horizontal force of magnitude F=10.0 N is applied to the 2.00 kg block, setting it in motion.
If you were given a large data set such as the sales over the last year of our top 1,000 customers, what might you be able to do with this data? What might be the benefits of describing the data?
Give an example of a research/statistic study that you encountered this week in your life (outside of this course). This could be something your saw on the news, read about in another course, read in a magazine, or even online. Label the variables
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Many children are being exposed to violence at home through direct abuse or witnessing their caregivers commit an act of violence on each other.
Insert citations in APA format and list reference in Exposure to violence at home-physical, sexual, or emotional abuse, coercive control, or witnessing partner
Thank you for your response to my post. It's really important for substance abuse counselors, especially those working with kids and teens
Engage in a literature review that supports and provides a rationale for selecting one counselling theoretical orientation.
For this week's discussion, I chose to focus on one of the most pervasive threats to data integrity: response bias.
To identify the components of giftedness in preteen children, the qualitative and quantitative methods I would use would include surveys
Each person, regardless of intersecting identities, brings something unique and different to the role-play. In reflecting back, were you aware of differences