An astronomical observatory detects a hot Jupiter exoplanet orbiting a distant star with an orbital period of 18.4 hours18.4\text{ hours}18.4 hours.
What is the angular speed of the exoplanet's orbit?
1.5×10−5 rad s−11.5 \times 10^{-5}\text{ rad s}^{-1}1.5×10−5 rad s−1
5.7×10−3 rad s−15.7 \times 10^{-3}\text{ rad s}^{-1}5.7×10−3 rad s−1
9.5×10−5 rad s−19.5 \times 10^{-5}\text{ rad s}^{-1}9.5×10−5 rad s−1
3.4×10−1 rad s−13.4 \times 10^{-1}\text{ rad s}^{-1}3.4×10−1 rad s−1