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cricket20 [7]
3 years ago
13

One half of 17’ 9 3/16”

Engineering
1 answer:
Mademuasel [1]3 years ago
6 0
555.66 is the answer I think
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Air is flowing steadily through a cooling section where it is cooled from 30 °C to 15 °C at a rate of 0.25 kg/s.
Lady bird [3.3K]

Answer:

C_{day} = 2.261\,USD

Explanation:

The heat transfer rate rejected to the refrigeration system is:

\dot Q_{L} = (0.25\,\frac{kg}{s} )\cdot (1.005\,\frac{kJ}{kg\cdot ^{\textdegree}C} )\cdot (30\,^{\textdegree}C-15\,^{\textdegree}C)

\dot Q_{L} = 3.768\,kW

The electric power needed to make refrigeration possible is:

\dot W = \frac{\dot Q_{L}}{COP_{R}}

\dot W = \frac{3.768\,kW}{2.8}

\dot W = 1.346\,kW

The daily energy consumption is:

\Delta E_{day} = (1.346\,kW)\cdot (86400\,s)

\Delta E_{day} = 116294.4\,kJ

\Delta E_{day} = 32.304\,kWh

The cost of electricity consumed by the air-conditioner per day is:

C_{day} = c\cdot \Delta E_{day}

C_{day} = (0.07\,\frac{USD}{kWh} )\cdot (32.304\,kWh)

C_{day} = 2.261\,USD

5 0
3 years ago
Read 2 more answers
The critical resolved shear stress for a metal is 39 MPa. Determine the maximum possible yield strength (in MPa) for a single cr
damaskus [11]

Answer:

78 MPa

Explanation:

Given that the critical resolved shear stress for a metal is 39 MPa, the maximum possible yield strength for a single crystal of this metal is twice the critical resolved shear stress for the metal. The maximum yield yield strength for a single crystal of this metal that is pulled in tension (\sigma_y) is given as:

\sigma_y=2*critical\ resolved\ shear\ stress(\tau_{css})\\\\\sigma_y=2*\tau_{css}\\\\\sigma_y=2*39\\\\\sigma_y=78\ MPa

4 0
3 years ago
PLZ HELP ME PLZ I NEED HELP AS FAST AS POSSIBLE PLZ I WILL MARK THE BEST ANSWER AS BRAINLYIEST The most dangerous time to be on
MatroZZZ [7]

I think the answer is B) 1 a.m. and 5 a.m. I very sorry if it is wrong plz let me know if it is wrong bro thankx

8 0
3 years ago
Read 2 more answers
Engine horsepower decreases ________% for every___________feet above sea level.
Nitella [24]

Answer:

Engine horsepower decreases <u>3.5%</u> for every <u>1,000</u> feet above sea level.

4 0
3 years ago
1. Discuss the benefits of observing good safety measures in relation to an increase in
Aneli [31]

The benefits of observing good safety measures in relation to an increase in productivity within a pharmaceutical laboratory is that the act of adhering to all these policies helps a lot of employees to hinder the  spills of chemicals and other kinds of  accidents, as well as reduce the damage to the environment that is outside of the lab.

<h3>What are the benefits of practicing safety in the laboratory?</h3>

A laboratory is known to be one that is known to have a lot of potential risks that is said to often arise due to  a person's exposure to chemicals that are corrosive and toxic, flammable solvents, high pressure gases and others.

Therefore,  A little care and working in line to all the prescribed safety guidelines will help a person to be able to avoid laboratory mishaps.

Therefore, The benefits of observing good safety measures in relation to an increase in productivity within a pharmaceutical laboratory is that the act of adhering to all these policies helps a lot of employees to hinder the  spills of chemicals and other kinds of  accidents, as well as reduce the damage to the environment that is outside of the lab.

Learn more about safety measures  from

brainly.com/question/26264740

#SPJ1

8 0
2 years ago
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