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3 years ago

1. Static holding is when you hold the same posture for long periods of time.

Engineering

1 answer:

inn [45]3 years ago

7 0

Answer:false

Explanation:

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Multimeter and the LCD is showing Hz. What's she measuring?

eimsori [14]

Answer:

i think its d frequency

Explanation:

hz on a multimeter means frequency setting

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3 years ago

A 15-kg iron block initially at 280°C is quenched in an insulated tank that contains 100 kg of water at 18? Assuming the water t

Serhud [2]

Answer:

Explanation: Reverse card.

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4 years ago

In a tensile test on a steel specimen, true strain = 0.12 at a stress of 250 MPa. When true stress = 350 MPa, true strain = 0.26

scZoUnD [109]

Answer:

The strength coefficient is $625$ and the strain-hardening exponent is $0.435$

Explanation:

Given the true strain is 0.12 at 250 MPa stress.

Also, at 350 MPa the strain is 0.26.

We need to find $(K)$ and the $(n)$ .

$\sigma =K\epsilon^n$

We will plug the values in the formula.

$250=K\times (0.12)^n\\350=K\times (0.26)^n$

We will solve these equation.

$K=\frac{250}{(0.12)^n}$ plug this value in $350=K\times (0.26)^n$

$350=\frac{250}{(0.12)^n}\times (0.26)^n\\ \\\frac{350}{250}=\frac{(0.26)^n}{(0.12)^n}\\ \\1.4=(2.17)^n$

Taking a natural log both sides we get.

$ln(1.4)=ln(2.17)^n\\ln(1.4)=n\times ln(2.17)\\n=\frac{ln(1.4)}{ln(2.17)}\\ n=0.435$

Now, we will find value of $K$

$K=\frac{250}{(0.12)^n}$

$K=\frac{250}{(0.12)^{0.435}}\\ \\K=\frac{250}{0.40}\\\\K=625$

So, the strength coefficient is $625$ and the strain-hardening exponent is $0.435$ .

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3 years ago

What is the best engineering job to do? Why?

allochka39001 [22]

Answer:

Any engineering job would be good YOU should be the one choosing which job.

Explanation:

Engineering is a great outlet for the imagination, and the perfect field for independent thinkers.

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2 years ago

Read 2 more answers

Answer pleaseeeee quick

mojhsa [17]

Bending effect!! Whenever the orientation of the diffracting planes changes when the diffracting planes bend, the contrast changes

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3 years ago