The Earth completes one orbit around the Sun in about 365 days. The orbit has an average radius of $1.5 \times 10^{11}\,\text{m}$. What is the Earth’s average orbital speed?
- A$3.0 \times 10^{4}\,\text{m s}^{-1}$
- B$1.1 \times 10^{8}\,\text{m s}^{-1}$
- C$2.6 \times 10^{9}\,\text{m s}^{-1}$
- D$1.3 \times 10^{15}\,\text{m s}^{-1}$