Velocity stands for Displacement w.r.t time

Or

Ans:
C
Explanation:
because it is moving down the stairs
Answer:
A derived quantities is terms of the 7 base quantities via a system of quantity equations which are called SI derived units.
Explanation: there you go:)
Answer:
You now this question state why a person standing at point Y hears an echo
Answer:
ΔVab = Ed
ΔVab = Va-Vb = Va-V0 = Va
E = Va/ d
= 413V / 0.0795 m
= 5194.97 V/M
Explanation:
the potential difference between two uniform plates is calculated by the formula of electric field.