1) How many meters are there in a light-second? From a window, you can see two at distances of 300m and 600 m. How far away are the tress in light-microseconds?
2) The diameter of the Earths orbit around the Sun is roughly 3 X 10*11m. The nearest star system to our sun is obserevd at 2 times 6 months apart(i.e when the earth is at opposite sides of its orbits) and is found to change direction by 4.2 X 10*- 4 degrees. How far away is the star system?
2) The diameter of the Earths orbit around the Sun is roughly 3 X 10*11m. The nearest star system to our sun is obserevd at 2 times 6 months apart(i.e when the earth is at opposite sides of its orbits) and is found to change direction by 4.2 X 10*- 4 degrees. How far away is the star system?