Question: 1. If an alien civilization is located 60 light-years away and they detect the earliest Earth tv transmissions (from ~1930), what year should we receive

1. If an alien civilization is located 60 light-years away and they detect the earliest Earth tv transmissions (from ~1930), what year should we receive the first message from the aliens? How did you arrive at your answer?
2. Assume you wanted to have a discussion with a civilization located near the center of the Milky Way Galaxy. What would be the minimum time between sending the signal and receiving a reply?
we live about 2.5x10^20 meters from the center of the galaxy.
Which one is correct below:
a) 4.2 years?
b) 8000 years?
c) 26000 years?
d) 52000 years?
e) 100000 years?
f) 1 million years?

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