Barangkali ada yang tau, tolong yaaa saya ajarin soal ini​

Jawaban:

1.d1 = 10 cm = 0.1 m

d2 = 6 cm = 0.06 m

v1 = 5 m/s

A1 = 1/4πd1²

= 1/4π0.1²=0.0079 m²

A2 = 1/4πd2²

=1/4π0.06²=0.0028 m²

A⟩ v2=?

Q1=Q2

A1v1=A2v2

0.0079×5=0.0028v2

0.0395=0.0028v2

v2=0.0395/0.0028

= 14.1071 m/s

B⟩ Q=?

Q =A.v

= 0.0079×5

= 0.0395 m³/s

2.Aa=100 cm² = 0.01 m²

Ab=50 cm² = 0.005 m²

Ac=200 cm² = 0.02 m²

va=5 m/s

A⟩ vb=? & vc=?

•Qa=Qb

Aa.va=Ab.vb

0.01×5=0.005vb

0.05=0.005vb

vb=0.05/0.005

=10 m/s

•Qa=Qc

Aa.va=Ac.vc

0.01×5=0.02vc

0.05=0.02vc

vc=0.05/0.02

=2.5 m/s

B⟩ V=?

t=1 menit = 60 s

•Qa=Va/t

Va=Qa.t

=0.05×60

=3 m³

3.A1 =8 cm² = 0.0008 m²

A2 = 10 m²

Q = 2 liter/second = 0.002 m³/s

v1 =? & v2=?

•Q=A1.v1

v1=Q/A1

=0.002/0.0008

=2.5 m/s

•Q=A2.v2

v2=Q/A2

=0.002/10

=0.0002 m/s

4.d=4 cm

t=2.5 menit

V=150 liter

v= ?

A=1/4πd²

=1/4π4²

=12.5664

Av=V/t

12.5664v=150/2.5

12.5664v=60

v=12.5664/60

=0.20944 cm/menit

Penjelasa:

Q=Debit

V(besar)=Volume

v(kecil) = kecepatan/kelajuan

t=waktu

A=luas penampang

Rumus:

•Q=V/t

•Q=A.v

•Q1=Q2

A1v1=A2v2

•Av=V/t