Answer:
(P₁ - P₂)f = 4.86*10⁶ Pa
Explanation:
To determine how variables affect the flow rate of an incompressible fluid undergoing laminate flow in a cylindrical tube, we use Poiseuille's equation.
Q = Πr⁴ / 8η * [(p₁ - p₂) / L]
Q = 0.40 m³/s
P₁ - P₂ = 6*10⁴ pa
r₁ = 0.33m
r₂ = 0.11m
According to Poiseuille's law, the pressure difference is inversely proportional to the radius of the pipe raised to power of 4.
P₁ - P₂ = 1 / r⁴
(P₁ - P₂)i / (P₁ - P₂)f = R⁴f / Ri⁴
Saving for (P₁ - P₂)f
(P₁ - P₂)f = (Rf⁴ / Ri⁴) * (P₁ - P₂)i
(P₁ - P₂)f = [(0.33)⁴ / (0.11)⁴] = 6*10⁴
(P₁ - P₂)f = 4.86*10⁶pa.
Answer:
C. Tension
Explanation:
The tension in the cord occurs because of the muscle power of Daryl, who lifts the brick. While doing so, Daryl needs to overcome the gravitational pull on the brick.
EXTRA:
If the brick was much heavier, than Daryl's muscles would not be able to overcome the the gravitational pull on that brick, and then the much heavier brick would remain stationary on the ground, despite the efforts made by Daryl.
It is a completely false statement that to form a negative ion, an atom will <span>give up an electron to gain stability. The correct option among all the options that are given in the question is the second option. Negative ion has more electrons and so it would be wrong to say that it will give up an electron. I hope the answer has helped you.
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