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Brilliant_brown [7]
3 years ago
8

List three reasons for surfacing metals.

Engineering
2 answers:
Dmitrij [34]3 years ago
8 0
Chemical,fatigue,and metal transfer or adhesion.
Solnce55 [7]3 years ago
4 0

Answer:

JUST BECUASE

WHY NOT

LOOKS BETTER

Explanation:

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Technologies that allow for instant worldwide communication include
hram777 [196]

Answer:

mobile phones and internet access

Explanation:

I got it right on my quiz

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3 years ago
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3 years ago
A missile flying at high speed has a stagnation pressure and temperature of 5 atm and 598.59 °R respectively. What is the densit
alexdok [17]

Answer:

5.31\frac{kg}{m^3}

Explanation:

Approximately, we can use the ideal gas law, below we see how we can deduce the density from general gas equation. To do this, remember that the number of moles n is equal to \frac{m}{M}, where m is the mass and M the molar mass of the gas, and the density is \frac{m}{V}.

For air M=28.66*10^{-3}\frac{kg}{mol} and \frac{5}{9}R=K

So, 598.59 R*\frac{5}{9}=332.55K

pV=nRT\\pV=\frac{m}{M}RT\\\frac{m}{V}=\frac{pM}{RT}\\\rho=\frac{pM}{RT}\\\rho=\frac{(5atm)28.66*10^{-3}\frac{kg}{mol}}{(8.20*10^{-5}\frac{m^3*atm}{K*mol})332.55K}=5.31\frac{kg}{m^3}

7 0
4 years ago
Engineers, scientists, and designers innovate products by taking apart existing
masya89 [10]

Answer:

Mechanical dissection

Explanation:

Taking apart old things and innovating to improve upon them is mechanical dissection.

7 0
3 years ago
Deidre has just moved from the sales department into the finance department. On her first day in her new role, she receives an e
melisa1 [442]

Answer:

 d. The company uses role-based access control and her user account hasn't been migrated into the correct group(s) yet

Explanation:

Since Deidre is accessing her e-mail there appears to be nothing wrong with her account or password. Since her role is new, most likely the problem is associated with her new role.

3 0
3 years ago
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