Physics

Guest

13 June, 16:55

Which of the following statements is true?

1. Since the sun uses its own hydrogen to create energy, it will eventually run out of fuel and burn out.

2. Objects in the universe are moving toward Earth, which supports the theory that the universe is shrinking.

3. The absolute magnitude of a star measure both luminosity and the stars distance from Earth.

4. All the inner planets are less than one AU from the sun.