Ummmmmmm do u need help with anything ✌?
Answer:
Both Technician A and Technician B
Explanation: Both technicians are correct.
Answer:
<u>Eo = A/[-nB/A]^(1/n-1) + B/[-nB/A]^(n/n-1)</u>
Explanation:
<u>Step 1.</u>
Taking derivative of the equation with respect to 'r' we get:
d/dr(EN) = - A/r² - nB/r^(n+1)
Setting this equation to zero:
<u>Step 2.</u>
Solving for r:
- A/r² - nB/r^(n+1) = 0
A/r² + nB/r^(n+1) = 0
Ar^(n+1) + nBr² = 0
Ar^(n+1) = - nBr²
[r^(n+1)]/r² = - nB/A
r^(n+1-2) = - nB/A
r^(n-1) = - nB/A
Taking power 1/(n-1) on both sides:
r = [-nB/A]^(1/n-1)
This is the value of ro:
ro = [-nB/A]^(1/n-1)
<u>Step 3.</u>
Substituting value of ro in eqn we get value of Eo
<u>Eo = A/[-nB/A]^(1/n-1) + B/[-nB/A]^(n/n-1)</u>
Answer: soul formation is a critical on soil fertility,Earth worm improves soul,through humus formation, earthworm contribute to soil structure. Porosity and structural stability and reduces run-off. Earthworm modifies nutrient cycling and soil organic matter.it induce substance that improves plant health and growth.
Earthwormth changes the soil structure,nutrient and water.cultural practices like tillage and organic matter regulate the size and activities of the earthworm community.
Answer:
4.18 J/KgK
Explanation:
Equilibrium point is reached when
m₁*c₁(T₁-T) = m₂*c₂(T -t₂)
m1 = 20
c1 = 0.5
T1 = 450
m2 = 150 kg
c2 = 2.6
T2 = 50
putting these values into the formula
20*0.5 (450-T) = 150*2.6(T - 50)
4500 - 10T = 390T<em> - 19500</em>
4500 + 19500 = 390T + 10T
24,000 = 400T
T = 24000/400
= 60⁰C
ΔSmetal = m1*c1In[t + 273]/[T1+273]
= 20*0.5 In (60+273)/450+273
= 10 ln(333/723)
= 10 * -0.7752
= -7.752
ΔS/oil =
m2*s2(60 + 273)/50 + 273)
= 150*2.6ln(333/323)
= 390 * 0.03048
= 11.88j/KgK
Δ<em>total = -7.7+11.8</em>
<em>= </em><em>4.18J/KgK</em>
this is the enthropy change