Problema Solution

Earth vs. Sun. The mass of Earth is about 6 times 10^21 metric tons. The sun is 1.998 times 10^27 metric tons. About how many times the mass of earth is the mass of the sun. Express the answer in scientific notation

Answer provided by our tutors

The ratio between the mass of Earth M_e and the mass of the sun M_s is:

R = M_e/M_s = (6 x 10^21)/(1.998 x 10^27) = (6/1.998) x 10^(21-27) =3.003x10^-6