In order for a satellite to remain in orbit, the satellite must have reached the required orbital
The data table shown gives the mean radius of orbit R and the period T of some planets orbiting the Sun. Which ratio is constant for these planets?
The diagram below represents the position of Earth in its orbit and the position of a comet in its orbit around the Sun.
Which inference can be made about the comet's orbit, when it is compared to Earth's orbit?
The diagram below shows a comet in an elliptical orbit around a star.
Which arrow indicates the direction of the gravitational force the star exerts on the comet when the comet is in the position shown?
Which statement describes the motion of Earth around the sun?