Answer:
C
Explanation:
N = Na.P/A------(1)
Na = avogadro's number = 6.02210²³
P = density
A = atomic weight of metal
When we substitute into equation 1 above we get
1.0x10²⁹atoms/m³
From here we calculate the number of vacancies
T = 1000⁰c = 1273K
The formula to use is
Nv= Nexo(Qt/K.T) -----(2)
Qt = 1.22eV
K = Boltzmann's constant = 8.6210x10^-5
When we substitute values into equation 2
We get Nv = 1.49 x 10²⁴m-3
Therefore option c is correct
Check attachment for a more detailed calculation of this question
Answer:
hello your question has some missing information attached to the answer is the missing component
Answer : αaxial,p = -6.034 ksi ( compressive )
αbend,p = 19.648 ksi ( tensile )
Explanation:
αaxial, p = 
equation 1
αbend, p = 
equation 2
P = load = 35 kips
A = area of column = 5.8 
d = column cross section depth = 9.5 in
= 55.0 
Hence equation 1 becomes
αaxial,p = -35 / 5.8 = - 6.034 ksi ( compressive )
equation 2 becomes
αbend, p = 
= + 19.648 ksi ( tensile )
Answer:
The horizontal conductivity is 41.9 m/d.
The vertical conductivity is 37.2 m/d.
Explanation:
Given that,
Thickness of A = 8.0 m
Conductivity = 25.0 m/d
Thickness of B = 2.0 m
Conductivity = 142 m/d
Thickness of C = 34 m
Conductivity = 40 m/d
We need to calculate the horizontal conductivity
Using formula of horizontal conductivity
Put the value into the formula
We need to calculate the vertical conductivity
Using formula of vertical conductivity
Put the value into the formula
Hence, The horizontal conductivity is 41.9 m/d.
The vertical conductivity is 37.2 m/d.
Answer: I will list them down below!
Explanation:
He can buy 6, 50 cent candies.
He can buy 30, 20 cent candies.
He can buy 6, 30 cent candies and 6, 20 cent candies.
He can buy 15, 20 cent candies and 3, 50 cent candies.
He can by 3, 20 and 30 cent candies and 3, 50 cent candies.
That's it.
Hope this helps!
