(b) Figure 3(b) shows a round pipe A with a diameter of 20 mm Oil flow splits into two at the end of the pipe. Pipe B with a diameter of 10 mm has a Velocity, Vs-
0.28 ms and pipe C with diameter 15 mm has Velocity, Vc - 0.55 ms!
Determine the velocity in the pipe A (VA), flow rate in the pipe B (Qa) and
discharge from the pipe C (Q.).
Rajah 3(b) menunjukkan paip A berbentuk bulat dengan diameter 20 mm. Paip itu
yang mengalirkan minyak berpisah kepada dua paip di penghujung paip A
tersebut. Paip B dengan diameter 10 mm dengan halaju. V-0.28 ms' dan paip
C dengan diameter 15 mm dengan halaju. Ve=0.55 ms. Tentukan halaju pada
paip A WV), kadar alir pada paip B (Q) serta kadar alir keluar di paip C(Q),
1
B
Vy 0.33
20
Ve-0.55
Figure 3(b)
Rajah 3 (b)
[10 marks]
10 markahi

Electrical charge is measured in coulomb.(c). the amount of an electrical charge that moves in a circuit depends on the current flow and how long it flows for. a current of 10 a flows for 30 s,then 10 x=300 coulombs of electrical charge moves

1) what is light? light is an electromagnetic wave visible to the human eye.  2) what is a reflection? the rebounding of a light ray when it hits a mirror.3) what is the incident ray? contacts the surface of an object.4) what is the reflected ray? bounces off a reflective surface.5) what is the normal ray? perpendicular to the surface of a mirror.6) what is the angle of incidence? an angle formed by the incident ray and the normal.7) what is the angle of reflection? an angle formed by the reflected ray and the normal.8) what is refraction? (bending.)9) what is a converging lens? bring together light rays that pass through.10) what is a diverging lens? spreads out light passing through.11) focal point? the real point where the refracted rays meet when the incident rays run parallel.