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lys-0071 [83]
3 years ago
7

Select the correct answer.

Engineering
1 answer:
bagirrra123 [75]3 years ago
5 0

Answer:

the correct answer is not in the options

the answer is supposed to be 10m/s² from the formula F=ma

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A technician needs to check the heating operation of a heat pump that has no gauge access ports. The technician should start by:
OverLord2011 [107]

The technician should start by checking the temperature rise across the indoor coil.

<h3>Who is a technician?</h3>

This is a person who has skill in a particular area of job. A technician is responsible for repairs and also ensure different equipment and systems are working perfectly.

Hence, the technician should start by checking the temperature rise across the indoor coil.

Learn more about technician here : brainly.com/question/13315405

#SPJ1

7 0
2 years ago
Match the following parts of a crane
trasher [3.6K]
It is auxillary sorry i couldn’t help it happens to the best of us
5 0
3 years ago
Consider a thermal energy reservoir at 1500 K that can supply heat at a rate of 150,000 kJ/h. Determine the exergy of this suppl
anzhelika [568]

Answer:

33.4KW

Explanation:

Firstly, we calculate the power index in a reversible heat engine which is given as;

n = 1 - T1/T2

T1 = atmospheric temperature 298k

T2 = reservoir temperature 1500k

n = 1 - 298/1500

n = 0.8013

output energy = n × energy input

0.8013×150000 = 120195KJ/hr

Power output = 120195KJ/hr/3600 = 33.4KW

8 0
4 years ago
A bird is flying in air. It is stretching its wings all along the sky and is flying in a certain direction Flying a bird is an e
guapka [62]

Answer:

a. Composition of Vector.

Explanation:

When a bird flies in the air, it stretches its wings into air and this movement helps it move in a certain direction. This is an example of composition of vector. Air strikes the wings in opposite direction and bird wing movement helps it move against the wind.

3 0
4 years ago
A piston-cylinder assembly contains 2 lb of air at a temperature of 540 degrees R and a pressure of 1 atm. The air is compressed
attashe74 [19]

Answer:

W=-123.8Btu

Explanation:

Hello,

In this problem, the piston-cylinder assembly make us state the energy balance as:

Q-W=\Delta U

Thus, we must now compute \Delta U in terms of Cv as follows:

\Delta U=mCv(T_2-T_1)\\\Delta U=2lb*0.173\frac{Btu}{lb*R}*(840R-540R)\\ \Delta U=103.8Btu

Now, since heat is given off, its sign is negative, thus, the work is computed as:

W=Q-\Delta U\\W=-20Btu-103.8Btu=-123.8Btu

This work means that work was done over the system in order to allow the compression.

The suppositions were:

- The change in the internal energy is a function of the temperature.

- Air is an ideal gas.

Best regards.

8 0
4 years ago
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