Given:
Pressure, 
= 1300 kPa
Temperature, 
= 
= 100 kPa
velocity, v = 40 m/s
A = 1
Solution:
For air propertiess at
= 1300 kPa
=
= 793kJ/K
= 
and also at
= 100 kPa
= 401 KJ/K
= 
a) Mass flow rate is given by:
Now,
= 46.51 kg/s
b) for the power produced by turbine, 
= 18.231 MW
Answer:
Refer to explaination
Explanation:
A NAK only protocol is not preferable to a protocol that uses ACKs especially when the sender sends data frequently.
This is because NAK only protocol will be able to detect that a packet has been lost already when the receiver receives the subsequent packet. Also, as the sender only sends data infrequently, NAK only protocol takes a longer time to realize that a packet has been lost.
On the other hand, NAK only protocol is preferred to a protocol that uses ACKs, when the sender sends data out frequently, here the data loss rate is low.
Answer:
The answer is, It doesn't violate the first law of thermodynamics
Explanation:
The reason is that a refrigerator system does not create energy, it only does work by removing heat from a system or surrounding.
What is the first law of thermodynamics?
The first law of thermodynamics, also known as Law of Conservation of Energy, states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another.
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