Homework Help: reading

Posted by Anonymous on Friday, October 19, 2012 at 7:17am.

According to science, the fastest speed possible for anything is the speed of light. The speed of light is about 186,000 miles per second. That means that in one minute, light travels 11,160,000 miles. The star nearest Earth is the Sun. It's about 93,000,000 miles from Earth. Therefore, it takes sunlight about eight minutes to travel to Earth. So, when you see the Sun, you aren't seeing it as it is. You're seeing it as it was eight minutes ago. Since the stars are much farther away than our Sun, imagine how far back in time you're seeing them! It's obvious that humans will never travel to planets around even the nearest stars.

5. Which statement taken from the paragraph is most likely to be opinion rather than fact?

A. The fastest speed possible for anything is the speed of light.
B. When you see the Sun, you aren't seeing it as it is.
C. Humans will never travel to planets around even the nearest stars.
D. The star nearest Earth is the Sun.

reading - drwls, Friday, October 19, 2012 at 8:07am
C. The last statement is not "obvious" at all. It ignores the ability to accelerate spacecraft to near the velocity of light, and the relativistic effects that will slow clocks and life processes for the travelers.

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