3 years ago

A metal alloy has been tested in a tensile test with the following results for the flow curve

Engineering

1 answer:

MA_775_DIABLO [31]3 years ago

4 0

Answer:

dhjdjs

Explanation:

ehejsikajaudiieisisjsjsjsjsjjsjsjsjsjs

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Timber frame construction uses timber studs and rails, together with a structural sheathing board, to form a structural frame that transmits all vertical and horizontal loads to the foundations.

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Suppose there are n chairs in a row. We want to compute the number of ways to put 2 students into seats so that they are not nex

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Complete Question

The complete question is shown on the first uploaded image

Answer:

a) $f_{(n)} = f_{(n-1)} + n-2$

b) $g_{(n)} = g_(n+1) + (n-2)$

Explanation:

The explanation is shown on the second and third uploaded image

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Determine the nature of the following cycle (reversible, irreversible, or impossible): a refrigeration cycle draws heat from a c

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Answer:

Impossible.

Explanation:

The ideal Coefficient of Performance is:

$COP_{i} = \frac{250\,K}{300\,K-250\,K}$

$COP_{i} = 5$

The real Coefficient of Performance is:

$COP_{r} = \frac{950\,kJ-70\,kJ}{70\,kJ}$

$COP_{r} = 12.571$

Which leads to an absurds, since the real Coefficient of Performance must be equal to or lesser than ideal Coefficient of Performance. Then, the cycle is impossible, since it violates the Second Law of Thermodynamics.

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The answer is C

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