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3 years ago

I need solution for this question pleaseSelect the right answer

Engineering

2 answers:

Dafna11 [192]3 years ago

8 0

Answer:

1.E aluminum

2.E all

3. Either d or e leaning to e

Ostrovityanka [42]3 years ago

3 0

Explanation:

the 7th one answer is beacause mercury is bad at sharing electrons

the 8th one's answer is Rhodium

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Thermodynamics deals with the macroscopic properties of materials. Scientists can make quantitative predictions about these macr

Arlecino [84]

Answer:

Explanation:

From the information given:

Using the equipartition theorem, the average energy of a molecule dor each degree of freedom is:

$U = \dfrac{1}{2}k_BT$

$U = \dfrac{1}{2}nRT$

For s degree of freedom

$U = \dfrac{1}{2}snRT$

However, the molar specific heat $C_v = \dfrac{1}{n} \dfrac{dU}{dT}$

Therefore, in terms of R and s;

$C_v = \dfrac{1}{n} \dfrac{d}{dT} \begin{pmatrix} \dfrac{1}{2} snRT \end {pmatrix}$

$C_v = \dfrac{Rs}{2}$

Given that:

Cv=70.6Jmol⋅K and R=8.314Jmol⋅K

Then; using the formula $C_v = \dfrac{Rs}{2}$

$70.6 \ J/mol.K = \dfrac{(8.314 \ J/mol.K)\times s}{2}$

$70.6 \ J/mol.K \times 2= (8.314 \ J/mol.K)\times s$

$s= \dfrac{70.6 \ J/mol.K \times 2}{ (8.314 \ J/mol.K) }$

s = 16.983

s $\simeq$ 17

7 0

3 years ago

What is the capacity of the machine in batches?

Valentin [98]

28 batches per day and the setup time is five minutes

3 0

3 years ago

What is the function of a regulator?

elena55 [62]

The function if I’m not correct just text me but 3

3 0

2 years ago

Joseph wants to practice architecture. Which compulsory assessment administered by NCARB does he need to complete?

Hunter-Best [27]

Answer:

Architect Registration Examination (ARE)

Explanation:

In this scenario, Joseph wants to practice architecture. A compulsory assessment administered by National Council of Architectural Registration Boards (NCARB) which he has to complete is an Architect Registration Examination.

An Architect Registration Examination (ARE) refers to the professional licensure examination to be taken by anyone who intends to practice architecture in the United States of America, Puerto Rico, Guam, Canada, US Virgin Islands.

The main purpose of the Architect Registration Examination is to assess an architect's knowledge, skills, and abilities on architectural best practices, procedures and services. Also, it focuses on areas relating to a building's safety, soundness and health impact on the habitants. Therefore, ARE is a prerequisite for practicing architecture across the United States of America jurisdiction.

Once an architect passes the examination, he or she would be given a license to practice architecture.

<em>Hence, for Joseph to practice architecture he must take the Architect Registration Examination developed and administered by National Council of Architectural Registration Boards (NCARB). </em>

8 0

3 years ago

A part made from annealed AISI 1018 steel undergoes a 20 percent cold-work operation. Obtain the yield strength and ultimate str

Charra [1.4K]

Answer:

yield strength before cold work = 370 MPa

yield strength after cold work = 437.87 MPa

ultimate strength before cold work = 440 MPa

ultimate strength after cold work = 550 MPa

Explanation:

given data

AISI 1018 steel

cold work factor W = 20% = 0.20

to find out

yield strength and ultimate strength before and after the cold-work operation

solution

we know the properties of AISI 1018 steel is

yield strength σy = 370 MPa

ultimate tensile strength σu = 440 MPa

strength coefficient K = 600 MPa

strain hardness n = 0.21

so true strain is here ∈ = $ln\frac{1}{1-0.2}$ = 0.223

yield strength after cold is

yield strength = $K \varepsilon ^n$

yield strength = $600*0.223^{0.21)$

yield strength after cold work = 437.87 MPa

and

ultimate strength after cold work is

ultimate strength = $\frac{\sigma u}{1-W}$

ultimate strength = $\frac{440}{1-0.2}$

ultimate strength after cold work = 550 MPa

8 0

2 years ago

I need solution for this question pleaseSelect the right answer ​

I need solution for this question pleaseSelect the right answer