Answer:
Velocity of rock fall collision, v = 13.21 m/sec
Explanation:
Detailed explanation given in the attached document.
Answer:
Check the explanation
Explanation:
The average heat Flux which sometimes can be called heat flux density, heat flow rate intensity or heat-flow density refers to the flow of energy per unit of area per unit of time. the units in SI are computed as watts per square metre
. It has both a magnitude as well as a direction and so it is a vector quantity.
The full step by step explanation to the question above can be seen in the attached image below.
Answer:
The heat transfer q = 18.32W
Explanation:
In this question, we are asked to calculate the heat entering the tube and also evaluate properties at T =400K
Please check attachment for complete solution and step by step explanation
Answer:
Change in entropy S = 0.061
Second law of thermodynamics is satisfied since there is an increase in entropy
Explanation:
Heat Q = 300 kW
T2 = 24°C = 297 K
T1 = 7°C = 280 K
Change in entropy =
S = Q(1/T1 - 1/T2)
= 300(1/280 - 1/297) = 0.061
There is a positive increase in entropy so the second law is satisfied.