Answer:

This delay affect conversations in the sense that recipient will be receive the message just 2.56 seconds after the message was sent.
Explanation:
The laser pulse has an ondulatory nature as electromagnetic wave, which can travel in the void. Speed of light is constant and distance between Earth and the Moon is:



This delay affect conversations in the sense that recipient will be receive the message just 2.56 seconds after the message was sent.
Displacement/distance metres
Time seconds
Force Newtons
Energy Joules
Voltage Volts
Current intensity Amperes
Resistance Ohms
Light intensity Candella
Pressure Pascals
Charge Coulombs
I think it's longitudinal wave because the particles move parallel to the direction that the wave is traveling.