Physics>Gravitation
According to the third Kepler's law,
where T is a period and a is semi-major axis.
It is given that , so
Time period of a planet whose semi major axis is 3.5 × 10⁹ m is found to be 100 years. Find the time period of a planet whose semi major of axis is twice of it.
a) Calculate the period T of a planet whose orbit has a semi semimajor axis of 16 AU. _______ y b) Calculate the period T of a dwarf planet whose orbit has a semimajor axis of 662 AU. _______y c) Calculate the period T of a planet whose orbit has a semimajor axis of 5.3 AU. _______ y
Asteroid Bearcat has a orbital period of 2000 years. What is its semi-major axis in AU?
Neptune orbits the Sun with a period of 164.8 years. The average distance in kilometers (or the semi-major axis) of Neptune from the Sun is: a) 30 AU b) 4.5 × 109