Answer: ε₁+ε₂+ε₃ = 0
Explanation: Considering the initial and final volume to be constant which gives rise to the relation:-
l₀l₀l₀=l₁l₂l₃

taking natural log on both sides

Considering the logarithmic Laws of division and multiplication :
ln(AB) = ln(A)+ln(B)
ln(A/B) = ln(A)-ln(B)

Use the image attached to see the definition of true strain defined as
ln(l1/1o)= ε₁
which then proves that ε₁+ε₂+ε₃ = 0
To solve this problem we will use the Froude number that relates the Forces of Inertia with the Forces of Gravity. There will be jump in the downstream only if Froude Number (Fr) is greater than 1 at upstream. Our values are given as,

Then the velocity would be:

The number of Froude is given as,

Where,
V = Velocity
g = Gravity
D = Diameter
Replacing we have that

There will be no Jump, correct answer is B.
Answer:
A fluid is a substance [ <em>liquid</em><em> </em><em>and</em><em> </em><em>gas</em><em> </em><em>state</em><em> </em>] in which motion of another substance in it is opposed due to viscous drag [ <em>viscosity</em><em> </em>]
Explanation:

Answer: True
Explanation:
The total opposition to current flow in an AC circuit is known as Impedance.
Answer:
Encouraging your preschooler’s creative play
For your preschooler, time, materials and space to be creative are very important.
Preschoolers like to be spontaneous in their creative play, so it’s good to follow your child’s lead. But there’ll also be times when your child wants you to be more involved in her creative activities. By being actively involved, you can develop your child’s skills and understanding.