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3 years ago

Is the gap store an example of commercial construction? Yes or no

Engineering

1 answer:

user100 [1]3 years ago

5 0

Answer:

Explanation:

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horsena [70]

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3 years ago

A pipe fitter would fabricate which one of the following systems?

Anettt [7]

Answer:

Explanation:

i just answered it on my test

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1 year ago

A refrigerator operating on the Carnot cycle is used to make ice. Water freezing at 32oF is the cold reservoir. Heat is rejected

Mnenie [13.5K]

Answer:

Explanation:

From the given information:

Water freezing temp. $T_L = 32 ^0 \ F$

Heat rejected temp $T_H = 72 ^0 \ F$

Recall that:

The coefficient of performance is:

$COP_{ref} = \dfrac{T_L}{T_H - T_L} \\ \\ = \dfrac{32+460}{(72 +460) -(32+460)} \\ \\ =\dfrac{492}{532 -492} \\ \\ = \dfrac{492}{40} \\ \\ COP_{ref} = 12.3$

Again:

The efficiency given by COP can be represented by:

$COP = \dfrac{Q_L}{W} \\ \\ W = \dfrac{Q_L}{COP} \\ \\ W = \dfrac{2000 \ lbm \times 144 \ Btu/lbm}{12.3} \\ \\ W = 23414.63 \ Btu$

Finally; the power input in an hour can be determined by using the formula:

$Power= \dfrac{W}{t} \\ \\ Power = \dfrac{23414.63 \ Btu}{ 1 \ hr} \\ \\ Power = \dfrac{23414.634 \times 1055.056 \ J}{1 \times 3600} \\ \\ Power = 6.86 \ kW$

In hp; since 1 kW = 1.34102 hp

6.86kW will be = (6.86 × 1.34102) hp

= 9.199 hp

7 0

2 years ago

A Service Schedule is...

VikaD [51]

Answer:

option c

Explanation:

8 0

3 years ago

Read 2 more answers

You don't know which insert you have, and the inserts are different sizes, meaning the amount needed for a 1:3 ratio is differen

VashaNatasha [74]

Answer:

Explanation:

For ligation process the 1:3 vector to insert ratio is the good to utilize . By considering that we can take 1 ratio of vector and 3 ratio of insert ( consider different insert size ) and take 10 different vials of ligation ( each calculated using different insert size from low to high ) and plot a graph for transformation efficiency and using optimum transformation efficiency we can find out the insert size.

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3 years ago