Describe the direction of the forces you would exert in the Sim to make the orange object reach the target without
1 answer:
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(b) 71%
The thermal efficiency of a Carnot heat engine is given by:
where
W is the useful work done by the engine
is the heat in input to the machine
In this problem, we have:
is the heat absorbed
is the work done (175 kJ is the heat released to the sink, therefore the work done is equal to the difference between the heat in input and the heat released)
So, the efficiency is
(a)
The efficiency of an engine can also be rewritten as
where
is the absolute temperature of the cold sink
is the temperature of the source
In this problem, the temperature of the sink is
So we can re-arrange the equation to find the temperature of the source:
No. of ways in the elements of n be permuted is n!/4
Number of elements = n
Number of face in which the element of n be permuted if 1 must proceed 2 and 3 is to precede 4.
n = 4
The possible permutation will
(1,2,3,4), (1,3,2,4),(1,3,4,2),(3,4,1,2),(3,1,2,4),(3,1,4,2)
There are 6 possible outcomes
For n= 5
With 1,2,3,4 we add 5 in the arrangement with above terms
The possible number of permutation
5×6 = 30
When n = 6
30×6 = 180.
So for an element
If 1 precede 2 and 3 is yo precede 4 is
<h2>= n! ×6/4!
= n!/4
No. of ways in the elements of n be permuted is n!/4
To know more about permutation:
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