3 years ago

Hi all any one help me??

Engineering

2 answers:

yanalaym [24]3 years ago

5 0

Answer:

Explanation:

sorry i dont know

Taya2010 [7]3 years ago

3 0

I just want ur points

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For a steel alloy it has been determined that a carburizing heat treatment of 15 h duration will raise the carbon concentration

Free_Kalibri [48]

Answer:

135 hour

Explanation:

It is given that a carburizing heat treatment of 15 hour will raise the carbon concentration by 0.35 wt% at a point of 2 mm from the surface.

We have to find the time necessary to achieve the same concentration at a 6 mm position.

we know that $\frac{x_1^2}{Dt}=constant$ where x is distance and t is time .As the temperature is constant so D will be also constant

So $\frac{x_1^2}{t}=constant$

then $\frac{x_1^2}{t_1}=\frac{x_2^2}{t_2}$ we have given $x_1=2 mm\ ,t_1=15 hour\ ,x_2=6\ mm$ and we have to find $t_2$ putting all these value in equation

$\frac{2^2}{15}=\frac{6^2}{t_2}$

so $t_2=135\ hour$

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3 years ago

. In one stroke of a reciprocating compressor, helium is isothermally and reversibly compressed in a piston + cylinder from 298

andriy [413]

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5.7058kj/mole

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Please see attachment for step by step guide

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3 years ago

Gtjffs

grandymaker [24]

the required documents is 3000

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3 years ago

3. Suppose you work for this company that evaluates Boolean circuits in exponential time. Since you are very smart, your manager

hammer [34]

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3 years ago

state & prove parallelogram law of vector addition &Also determine magnitude &direction of resultant vector.

ludmilkaskok [199]

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Parallelogram law of vector addition states that if two vectors are considered to be the adjacent sides of a parallelogram, then the resultant of the two vectors is given by the vector that is diagonal passing through the point of contact of two vectors.

8 0

3 years ago

Hi all any one help me?? ​

Hi all any one help me??