I got these 2 questions for homework and i can't figure them out.
Number 1 is With only a metre-stick, a piece of paper and the knowledge that the sun is 1.50 x 10^11m from the earth, how can one estimate the suns diameter.
Number 2 is You can watch the sun set and disappear over a calm...
The question is 0.5 x 234.987
And no the answer is not 117.4935
i need to convert that number 117.4935 into one number. As 0.5 is only one significant figure.