1answer.
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
tatiyna
3 years ago
9

Estimate (a) the maximum, and (b) the minimum thermal conductivity values (in W/m-K) for a cermet that contains 76 vol% carbide

particles in a metal matrix. Assume thermal conductivities of 30 and 67 W/m-K for the carbide and metal, respectively.
Engineering
1 answer:
Georgia [21]3 years ago
8 0

Answer:

The answer is below

Explanation:

Given that:

Volume of carbide (V_{C}) = 76% = 0.76, Volume of Nickel (V_{M}) = 100% - 76% = 24% = 0.24, thermal conductivities of carbide (E_{C}) = 30 W/m-K and thermal conductivities of meta. (E_M) = 67 W/m-K

a) The maximum thermal conductivity is given by:

Max = E_CV_c+E_mV_m=(0.76*30) + (0.24*67) = 38.88\ W/mK

b) The minimum thermal conductivity is given by:

Min = \frac{E_ME_C}{E_MV_C+E_CV_M}=\frac{30*67}{(0.76*67)+(0.24*30)}=34.58\ W/mK

You might be interested in
What makes building an airplane while flying so difficult?
Naddik [55]

Answer: Because if something goes wrong while you are flying it it will crash

Explanation:

7 0
3 years ago
A turbojet is flying with a velocity of 900 ft/s at an altitude of 20,000 ft, where the ambient conditions are 7 psia and 10°F.
tino4ka555 [31]

Hey! How are you? My name is Maria, 19 years old. Yesterday broke up with a guy, looking for casual sex.

Write me here and I will give you my phone number - *pofsex.com*

My nickname - Lovely

3 0
4 years ago
PythonA group of statisticians at a local college has asked you to create a set of functionsthat compute the median and mode of
skelet666 [1.2K]

Answer:

  1. def median(l):
  2.    if(len(l) == 0):
  3.       return 0
  4.    else:
  5.        l.sort()
  6.        if(len(l)%2 == 0):
  7.            index = int(len(l)/2)
  8.            mid = (l[index-1] + l[index]) / 2
  9.        else:
  10.            mid = l[len(l)//2]  
  11.        return mid  
  12. def mode(l):
  13.    if(len(l)==0):
  14.        return 0
  15.    mode = max(set(l), key=l.count)
  16.    return mode  
  17. def mean(l):
  18.    if(len(l)==0):
  19.        return 0
  20.    sum = 0
  21.    for x in l:
  22.        sum += x
  23.    mean = sum / len(l)
  24.    return mean
  25. lst = [5, 7, 10, 11, 12, 12, 13, 15, 25, 30, 45, 61]
  26. print(mean(lst))
  27. print(median(lst))
  28. print(mode(lst))

Explanation:

Firstly, we create a median function (Line 1). This function will check if the the length of list is zero and also if it is an even number. If the length is zero (empty list), it return zero (Line 2-3). If it is an even number, it will calculate the median by summing up two middle index values and divide them by two (Line 6-8). Or if the length is an odd, it will simply take the middle index value and return it as output (Line 9-10).

In mode function, after checking the length of list, we use the max function to estimate the maximum count of the item in list (Line 17) and use it as mode.

In mean function,  after checking the length of list,  we create a sum variable and then use a loop to add the item of list to sum (Line 23-25). After the loop, divide sum by the length of list to get the mean (Line 26).

In the main program, we test the three functions using a sample list and we shall get

20.5

12.5

12

3 0
3 years ago
We need to design a logic circuit for interchanging two logic signals. The system has three inputs I1I1, I2I2, and SS as well as
Salsk061 [2.6K]

Explanation:

Inputs and Outputs:

There are 3 inputs = I₁, I₂, and S

There are 2 outputs = O₁ and O₂

The given problem is solved in three major steps:

Step 1: Construct the Truth Table

Step 2: Obtain the logic equations using Karnaugh map

Step 3: Draw the logic circuit

Step 1: Construct the Truth Table

The given logic is

When S = 0 then O₁ = I₁ and O₂ = I₂

When S = 1 then O₁ = I₂ and O₂ = I₁

I₁     |     I₂     |    S    |    O₁    |    O₂

0     |     0     |    0    |    0    |     0

0     |     0     |    1     |    0    |     0

0     |     1      |    0    |    0    |     1

0     |     1      |    1     |    1     |     0

1      |     0     |    0    |    1     |     0

1      |     0     |    1     |    0    |     1

1      |     1      |    0    |    1     |     1

1      |     1      |    1     |    1     |     1

Step 2: Obtain the logic equations using Karnaugh map

Please refer to the attached diagram where Karnaugh map is set up.

The minimal SOP representation for output O₁

$ O_1 = I_1 \bar{S}  + I_2 S $

The minimal SOP representation for output O₂

$ O_2 = I_2 \bar{S}  + I_1 S $

Step 3: Draw the logic circuit

Please refer to the attached diagram where the circuit has been drawn.

7 0
3 years ago
5 kg of a wet steam has a volume of 2 m3
Verizon [17]
Have you seen the state of her body. Mad. If I wear it I ain’t wearing a jolly. ADEOLA wanna ride in the gysa
4 0
3 years ago
Other questions:
  • Manufacturing
    11·1 answer
  • Why does a foil airplane fly farther than a paper one?
    6·1 answer
  • 7. With the instruments located on the high-voltage side and with the low-voltage side short-circuited, the short-circuit test r
    13·2 answers
  • Two pressure gauges measure a pressure drop of 16.3 psi (lb/in.2) at the entrance and exit of an old buried pipeline. The origin
    13·1 answer
  • Two different fuels are being considered for a 2.5 MW (net output) heat engine which can operate between the highest temperature
    15·1 answer
  • Develop an E-R model (E-R Diagram) for the application belowDatabase RequirementsLogin
    12·1 answer
  • How to change a fuel fiter
    12·1 answer
  • In one study the critical stress intensity factor for human bone was calculated to be 4.05 MN/m3/2. If the value of Y in Eq. (2.
    6·1 answer
  • How many spark plugs does a diesel have? How many glow plugs? If you are a redneck/country person dont answer...I wanna see how
    10·2 answers
  • During the isothermal heat rejection process of a Carnot cycle, the working fluid experiences an entropy change of -0.7 Btu/R. I
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!