To solve this problem, apply the concepts related to the calculation of the work performed according to the temperature change (in an ideal Carnot cycle), for which you have to:
Where,
C = Heat capacity of the Brick
= Cold Temperature
= Hot Temperature
Integrating,
Our values are given as
Replacing,
Therefore the work perfomed by this ideal carnot engine is 58kJ
Answer:
Explanation:
The flow entering the first segment will be the same as the flow exiting the second segment, and in both cases it will be equal to the velocity multiplied by the area of the segment. If and Flow = VxA, then you have:
(1)
You can also calculate the transversal area of each segment, because blood vessels are cylinders and you know each segment's diameter. The formula to calculate this is:
Replacing d for each segment you have:
Now, replacing these values on (1), you have:
This means that velocity in the second segment is 15.4 times the velocity in which blood entered the first segment.
