Answer:
In an electric bulb the filament gets hot which glows and produces light. This is called lighting effect of electricity.
Explanation:
Answer:
the average speed of the blocks is 0.36 m/s
The water would be because however much salt you add the water rises
Use conservation of momentum ;
m1u1 + m2u2 = m1v1 + m2v2
1200×15.6 + 0 = 2700v
v = 18720/2700
v = 6.933 or ~ 7 m/s