Jawabanmu

2014-06-14T11:20:35+07:00
Debit = Volum.t
Q=V/t
Q=20/60
Q=(1/3) m^3.s

Q=A.v
1/3=(1/4)phi,d^2. x v
1/3=(1/4)3,14.10^-4 x
v=4264 m/s
2014-06-14T12:40:25+07:00
Q = Q
A . V = V/t
10⁻⁴/4.phi . V = 0,02/60
V = 4,24 m/s