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Leona [35]
3 years ago
10

Identify the correct sentence.

English
2 answers:
bija089 [108]3 years ago
7 0
B is the correct answer
Jobisdone [24]3 years ago
5 0
The correct sentence is B.
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Stainless steel rod has a gap of 0.0371 mm between its end and a rigid wall. The modulus of elasticity E = 210 GPa. The coeffici
alexgriva [62]

Answer:

The value of stress in the rod is 220.9 MPa

Explanation:

As the data is not complete, a similar question is found online and the missing data is used from that question. Similar question is attached herewith.

From the given data

The allowed total strain is given as \delta_a=0.0371 mm

The length of the rod is missing in this data which in the additional data is l=290 mm

The Modulus of Elasticity is given as E=210 GPa

The coefficient of thermal expansion is given as α= 10 ×10⁻⁶ mm / mm⋅°C.

The initial temperature is room temperature which is given as T1=22C

The final temperature is given as T2=140 C

The strain due to stress is given as

\delta_s=\dfrac{\sigma l}{E}

\delta_s=\dfrac{\sigma (0.290)}{210\times 10^9}\\\delta_s=1.38095\sigma \times 10^{-12}

Now the thermal strain is given as

\delta_c=l\alpha \Delta T\\\delta_c=0.290\times 10 \times 10^{-6}(T_2-T_1)\\\delta_c=0.290\times 10 \times 10^{-6}(140-22)\\\delta_c=0.0003422

So now the equation of the allowed strain is given as

\delta_a=\delta_s+\delta_c\\0.0371\times 10^{-3}=1.38095\sigma \times 10^{-12}+0.0003422\\\dfrac{1.38095}{10^{12}}\sigma+0.0003422=\frac{0.0371}{1000}\\\sigma=-\dfrac{10^{12}\times \:0.0003051}{1.38095}\\\sigma=-220934863.68 Pa\\\sigma=-220.9 MPa

The negative sign indicate that the stress is compressive.

The value of stress in the rod is 220.9 MPa

8 0
3 years ago
ILL DO ANYTHING IF SOMEONE DOES THIS FOR ME!
Sladkaya [172]

i dont get what im supposed to do sorry

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Which paralinguistic feature involves accenting certain syllables or words?​
weqwewe [10]
I think its volume sorry if not
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How does word choice affect the coherence of a chronological essay
Dmitrij [34]
Because you want elaborate your topics with a great word choice to capture the readers attention
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4 years ago
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We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain una
Marizza181 [45]

Answer:

The arrangement of this statement reveals the founders’ belief that individual rights pre-exist the establishment of a government-- a radical notion at the time.  The Declaration begins, “We hold these truths to be self-evident…”  By referring to the aspects of the subsequent statement as "self-evident truths," the founders insist that they do not merely apply to colonists but rather that they are universal.  Included in these universal truths is the idea, “that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.”  This bold assertion insists that no one life is more valuable than the next, and that—by virtue of sharing the same rights—no individual has the authority to rule over or oppress another.

Explanation

Hope this help! :)

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3 years ago
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