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3 years ago

What does the General Duty Clause require employers to do?

1 answer:

7 0

The General Duty clause states that an employer shall furnish "a place of employment which is free from recognized hazards that are causing or are likely to cause death or serious physical harm to it's employees.”

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A pipe of 0.3 m outer diameter at a temperature of 160°C is insulated with a material having a thermal conductivity of k = 0.055

Alekssandra [29.7K]

Answer:

Q=0.95 W/m

Explanation:

Given that

Outer diameter = 0.3 m

Thermal conductivity of material

$K= 0.055(1+2.8\times 10^{-3}T)\frac{W}{mK}$

So the mean conductivity

$K_m=0.055\left ( 1+2.8\times 10^{-3}T_m \right )$

$T_m=\dfrac{160+273+40+273}{2}$

$T_m=373 K$

$K_m=0.055\left ( 1+2.8\times 10^{-3}\times 373 \right )$

$K_m=0.112 \frac{W}{mK}$

So heat conduction through cylinder

$Q=kA\dfrac{\Delta T}{L}$

$Q=0.112\times \pi \times 0.15^2\times 120$

Q=0.95 W/m

4 0

3 years ago

Which of the following statements is true of a mature technology?

hoa [83]

Answer:

I think it is( More expensive than immature technologies) I took engineering class and this question is still quite tricky.

Explanation:

8 0

3 years ago

A collective noun names a group of more than one person,place, or thing<br> True or faults

ehidna [41]

Answer: A collective noun does name a group of people like a family and also it can also be for objects too.

Collective noun: A noun that is in singular form but that refers to a group of people of things

Explanation:

8 0

4 years ago

Read 2 more answers

A controlled process is described by the closed-loop transfer function G(s).

MissTica

Answer:

The answer is "Option B".

Explanation:

Given equation:

$G(s) =\frac{K(s + 1)}{2s^2 + (K-1)s + (K-1)}\\\\$

$\to 2s^2 + (K-1)s + (K-1)=0$

Calculating by the Routh's Hurwitz table:

$\to s^2 \ \ \ \ \ 2 \ \ \ \ \ \ K-1 \\\\\to s^2 \ \ \ \ \ K-1 \ \ \ \ \ \ \\\\\to s^0 \ \ ( \frac{(K-1)(K-1)(-2) (0)}{K-1} \\\\ \ \ \ \ = (K-1) )$

Form the above table:

$\to K-1 > 0 \\\\ \to K > 1$

In the above, the value of k is greater than 1.

3 0

3 years ago

The council members of a small town have decided that an earth levee should be rebuilt and strengthen to protect against future

Ket [755]

Answer:

present cost = $302218.15

Explanation:

given data

cost of the work 1st year A1 = $100,000

cost of the work 2nd year A2 = $85,000

cost of the work 3rd year A3 = $70,000

cost of the work 4th year A4 = $55,000

cost of the work 5th year A4 = $40,000

interest rate r = 6% = 0.06

to find out

present worth cost is for the first 5 years

solution

present worth cost will be here as per given equation

present cost = $\frac{A1}{(1+r)^1}+ \frac{A2}{(1+r)^2} + \frac{A3}{(1+r)^3} + \frac{A4}{(1+r)^4}+ \frac{A5}{(1+r)^5}$ .........................1

here r is rate of interest and A is amount given

put here value we get

present cost = $\frac{100,000}{(1+0.06)^1}+ \frac{85,000}{(1+0.06)^2} + \frac{70,000}{(1+0.06)^3} + \frac{55,000}{(1+0.06)^4}+ \frac{40,000}{(1+0.06)^5}$

present cost = $302218.15

5 0

4 years ago