Let's use Kepler's laws for the inner planets. Use the following distances from the sun to calculate the orbital period for each of these planets. Express your answer in terms of Earth years to three significant figures. Note: Use Kepler's law directly: Don't just Google the answers, as they will be a little bit different (can you think why?). When you have calculated them, only submit the value for Mars. Planet Distance from the sun Period of orbit around the sun Earth 150 million km - Earth years Mercury 58 million km - Earth years Venus 108 million km - Earth years Mars 228 million km - Earth years

Let's use Kepler's laws for the inner planets. Use the following distances from the sun to calculate the orbital period for each of these planets. Express your answer in terms of Earth years to three significant figures. Note: Use Kepler's law directly: Don't just Google the answers, as they will be a little bit different (can you think why?). When you have calculated them, only submit the value for Mars. Planet Distance from the sun Period of orbit around the sun Earth 150 million km - Earth years Mercury 58 million km - Earth years Venus 108 million km - Earth years Mars 228 million km - Earth years