A piston above a liquid in a closed container has an area of 1m2. The piston carries a load of 350 kg. What will be the external
1 answer:
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A) In the case of the Boundary Thickness Layer we use the given formula,
We know as well that,
Re = Número de Reynolds =
Where,
U = velocity
= kinematic viscosity
For water, kinematic viscosity,
So,
B) For flat plate boundary layer. Given the Critical Reynolds Number.= 5*10^5 we know that is equal to Re above.
Thus,
C. Wall shear stress,
For water, dynamic viscosity, = 2.344*10^-5 lbf-s/ft^2
Answer:
r = 0.05 m = 5 cm
Explanation:
Applying ampere's law to the wire, we get:
where,
r = distance of point P from wire = ?
μ₀ = permeability of free space = 4π x 10⁻⁷ N/A²
I = current = 2 A
B = Magnetic Field = 8 μT = 8 x 10⁻⁶ T
Therefore,
<u>r = 0.05 m = 5 cm</u>