Calculate the time (in years) it would take to send a message to the Galactic Capitol located at the center of our Milky Way galaxy and then receive the reply. We live about 2.5x10^20 meters away from the Galaxy center. Assume the message leaves the Earth and travels at the speed of light and that they take 1 year to decide what to answer..

The total time is .

Explanation:

Given:

The distance between Galactic Capitol and Earth is,

The speed of light is,

The time taken by the message to reach and come back to Earth is given by

In addition they take 1 year to decide to reply.

Thus, the total time is .

0.11 m/s and 0.28 m/s should be correct

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)