If the coast-to-coast distance is about 2900 miles, it will take about ...
... (2900 mi)/(186000 mi/s) ≈ 15.6 ms
for the signal to travel coast-to-coast at light speed.
_____
There are time delays due to the amplifiers and repeaters required in the path, and due to the fact that the signals don't actually travel at the speed of light in a wire.
A test of internet speed between Seattle and Washington, DC shows a round-trip time of about 87 ms when traffic is light. Modern communication channels tend to be faster than the telegraph (especially when measured in words per minute).
C. Public opinion
Propaganda is misinformation/bias information used influence people
A compromise is the middle group between two sides
Politics refer to how a country is governed
A supplementary angle of θ° is 180° - θ°.
Supplementary angle = 180° - 74°
Answer :
106°