Speed= distance/time
Speed= 170/230
Speed=0.74 m/s
I think this is the answer. I hope you can understand.
Mirrors reflect light waves.
Answer: An electric circuit includes a device that gives energy to the charged particles constituting the current, such as a battery or a generator; devices that use current, such as lamps, electric motors, or computers; and the connecting wires or transmission lines.
Explanation: Hope this helped! <3