Question

based on the our solar system model, if a new planet was identified that orbited the sun at an average orbital distance greater than that of mercury but less than that of venus, the average speed of this planet would be 1. greater than the average speed of mercury, but less than the average speed of venus 2. less than the average speed of mercury, but greater than the average speed of venus 3. greater than the average speed of venus, but less than the average speed of earth 4. less than the average speed of venus, but greater than the average speed of earth

Explanation:

According to Kepler's third law, the orbital speed of a planet is inversely related to its orbital distance from the Sun. A planet with an orbital distance greater than Mercury (closer to the Sun) but less than Venus (farther from the Sun) would have an orbital speed less than Mercury (which is closer and has a higher speed) but greater than Venus (which is farther and has a lower speed).

Answer:

1. less than the average speed of Mercury, but greater than the average speed of Venus