The statement about (12+x) that is true is that A.The expression (12+x) is a factor that represents the total number of pillows the artisan makes on Monday and Tuesday.
<h3>What is an expression?</h3>
An expression is simply used to show the relationship between the numbers or variables illustrated.
In this case, the artisan makes a batch of pillows on Monday and makes x more pillows on Tuesday to sell at the convention.
Here, (12 + x) is a common factor that illustrates the number relating to the pillows.
Therefore, the correct option is A.
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Answer:
S = 172.69 J/K
Explanation:
For a closed system, the entropy is given as the natural logarithm of microstates.
The number of particles (grains of sand); N = 25
The number of boxes (compartments); M = 1000
Entropy is the logarithm of number of microstates; Thus,
S = In ψ
However, the number of microstates is given by the formula;
ψ = Mⁿ
Thus, S = In Mⁿ
Plugging in the relevant values to obtain;
S = In (1000)^(25)
S = 172.69 J/K
It’s true hope this helps you
Answer:
a) 0.01
b) 150 cm^3/s
c) 300 cm^3/s
d) 25 cm^3/s
Explanation:
a) We know that :
Q=ΔP/R
R=8ηl/π*r^4
Givens:
r^2 = 0.1 r_1
Plugging known information to get :
Q=ΔP/R
=ΔP*π*r^4/8*η*l
Q_2/r_2^4 =Q_1/r_1^4
Q_2=Q_1/r_1^4*r_2^4
=Q_1/r_1^4*r*0.0001*r_1^4
Q_2 = 0.01
b) From the rate flow of the fluid we know that :
Q=ΔP/R (1)
F=η*Av/l (2)
R=8*ηl/π*r^4 (3)
<em>Where: </em>
ΔP is the change in the pressure .
r is the raduis of the tube .
l is the length of the tube .
η is the coefficient of the vescosity of the fluid .
R is the resistance of the fluid .
Givens: Q1 = 100 cm^3/s , ΔP= 1.5
Plugging known information into EQ.1 :
Q=ΔP/R
Q_2/ΔP2=Q_1/ΔP
Q_2=150 cm^3/s
c) we know that :
F = η*Av/l
can be written as :
ΔP = F/A = η*v/l
Givens: η_2 = 3η_1
Q=ΔP/R
Q=η*v/l*R
Q_2/η_2=Q_1/η_1
Q_2=300 cm^3/s
d) We know that :
Q=ΔP/R
R=8*ηl/π*r^4
Givens: l_2 = 4*l_1
Plugging known information to get :
Q=ΔP/R
Q=ΔP*π*r^4/8*ηl
Q_2/l_2=Q_1/l_1
Q_2 = 25 cm^3/s
Is this even a real question?