Answer:
The visible light frequency is 400 THz to 700 THz, approximately. A THz is a Terahertz, which is a unit of frequency equal to one trillion Hertz.
Answer:
The velocity of the rocket is 7.8 m/s
Explanation:
Answer:
an armature a permanent magnet brushes slip rings
Explanation:
In an extremely simplified explanation,
What happens is that the steam (heat) that is generated by the burning of coal is used to rotate the motor of the steam engine.