It is correct because the water level will be different when the statue fall into it the water level will be higher . it is because it is named by displacement
u subtract the the water level of the pond before the statue fall into it and after, this will get the volume of the statue.
B. The sound of the engine will get louder and the pitch higher.
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Answer:
No work is performed or required in moving the positive charge from point A to point B.
Explanation:
Lets take
Q= Positive charge which move from point A to point B along
Voltage difference,ΔV =V₁ - V₂
The work done
W = Q . ΔV
Given that charge is moved from point A to point B along an equipotential surface.It means that voltage difference is zero.
ΔV = 0
So
W = Q . ΔV
W = Q x 0
W= 0 J
So work is zero.