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Sidana [21]
3 years ago
6

Please Help!!!!

Physics
1 answer:
oee [108]3 years ago
7 0
I think is limestone
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If you exert a force of 10.0 N to lift a box a distance of 0.75 m, how much work do you do?
Bas_tet [7]

Answer:

<h2>7.5 J</h2>

Explanation:

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workdone = force × distance

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An air conditioner running with R-134a on a cycle executed under the saturationdome between the pressure limits of 0.8 MPa and 0
ohaa [14]

Answer:

The COP of the system is = 4.6

Explanation:

Given data

Higher pressure  = 1.8 M pa

Lower pressure = 0.12 M pa

Now we have to find out high & ow temperatures at these pressure limits.

Higher temperature corresponding to pressure 1.8 M pa

T_{H} = 62.9 °c = 335.9 K

Lower temperature corresponding to pressure 0.2 M pa

T_{L} = - 10.1 °c = 262.9 K

COP of the system is given by

COP = \frac{T_{L} }{T_{H} -T_{L}   }

COP = \frac{335.9}{335.9 -262.9}

COP = 4.6

Therefore the COP of the system is = 4.6

8 0
3 years ago
Which two statements best determine whether an engineering design is
pshichka [43]

Answer: A and B

Explanation:

just took the apex test

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