answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ainat [17]
2 years ago
7

10. Aluminum-lithium (Al-Li) alloys have been developed by the aircraft industry to reduce the weight and improve the performanc

e of this aircraft. A commercial aircraft skin material having a density of 2.47g/cm3 is desired. Compute the concentration of Li (wt%) that is required.
Engineering
1 answer:
klio [65]2 years ago
8 0

Answer:

C_Li=2.3 %

Explanation:

<u>solution:</u>

<em>we know that the average density of a two component alloy is given by:</em>

ρ_avg=100/(C_1/ρ_1+C_2/ρ_2)

2.47 g/cm^3=100/(C_Li/ρ_Li+(100-C_Li)/ρ_aL)

<em>solving for C_Li we get,</em>

C_Li=2.3 %

You might be interested in
Draw an ERD for each of the following situations. (If you believe that you need to make additional assumptions, clearly state th
Julli [10]

Answer:

it wqas red

Explanation:

red

3 0
2 years ago
PDAs with two stacks are strictly more powerful than PDAs with one stack. Prove that 2-stack PDAs are not a valid model for CFLs
tangare [24]

Answer:

?pooooooooooooooooooooooop

Explanation:

?pooooooooooooooooooooooop

6 0
2 years ago
Water at 400 kPa with a quality of 75% has its pressure raised 200 kPa (to 600 kPa) in a constant volume process. What is the ne
Zolol [24]

Answer:

T=194.3C

X=1

P=542.5kPa

Explanation:

Through laboratory tests, thermodynamic tables were developed, these allow to know all the thermodynamic properties of a substance (entropy, enthalpy, pressure, specific volume, internal energy etc ..)  

through prior knowledge of two other properties

First we find the specific volume knowing the temperature and quality of state 1

v(p=400kPa, x=0.75)=0.3471m^3/kg

As a constant volume process is presented, it keeps constant in state 2, so we find the temperature and quality with p = 600kPa  and v = 0.3471m ^ 3 / kg

T(P=600kPa, v=0.3471m ^ 3 / kg)=194.3C

x(P=600kPa, v=0.3471m ^ 3 / kg)=1

for the second part we find the pressure, with a quality of 1 and a volume of

v= 0.3471m ^ 3 / kg

p=542.5kPa

4 0
2 years ago
How does Accenture generate value for clients through Agile and DevOps?
Nana76 [90]
By permanently locking in stakeholder requirements during a project's planning phase. -through highly detailed process documentation that is updated following every work cycle.
7 0
1 year ago
Read 2 more answers
140-character statement that completes this sentence: I pledge to not text and drive because...
s2008m [1.1K]

Answer:

its bad and to drive drunk is even worse

4 0
2 years ago
Other questions:
  • Oil with a density of 800 kg/m3 is pumped from a pressure of 0.6 bar to a pressure of 1.4 bar, and the outlet is 3 m above the i
    9·1 answer
  • generally compound curves are not filtered recommended for A. Road B. water way C. underground road D. rail way​
    12·1 answer
  • 5 kg of steam contained within a piston-cylinder assembly undergoes an expansion from state 1, where the specific internal energ
    7·1 answer
  • The velocity of a particle which moves along the s-axis is given by v = 2-4t+5t^(3/2), where t is in seconds and v is in meters
    11·2 answers
  • Two physical properties that have a major influence on the cracking of workpieces, tools, or dies during thermal cycling are the
    13·1 answer
  • 4.9 Given that I 4 amps when Vs 40 volts and Is 4 amps and I 1 amp when Vs 20 volts and Is 0, use superposition and linearity to
    5·1 answer
  • The atomic radii of a divalent cation and a monovalent anion are 0.77 nm and 0.136 nm, respectively.1- Calculate the force of at
    11·1 answer
  • Two airstreams are mixed steadily and adiabatically. The first stream enters at 35°C and 30 percent relative humidity at a rate
    6·1 answer
  • Technician A says that weld-through primer can be removed from the immediate weld area to improve weld quality. Technician B say
    7·1 answer
  • Which of the following types of protective equipment protects workers who are passing by from stray sparks or metal while anothe
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!