Ceres has an orbital semi-major axis = 2.768 au. what is ceres’ orbital period?

4.6 years

Explanation:

According to Kepler’s Third Law of Planetary motion “The square of the orbital period  of a planet is proportional to the cube of the semi-major axis (size) of its orbit”:

(1)  

However, if is measured in Earth years, and is measured in astronomical units (unit equivalent to the distance between the Sun and the Earth), equation (1) becomes:  

(2)  

Knowing and isolating from (2):  

(3)  

(4)  

Finally:  

This is Ceres' orbital period

it would be a very light gray or not there at all antartica very rarely gets sun. so it would be hard to see your shadow. hope this ! (sorry if it dosn't)

explanation:

sonar - device which is used to find the submit submarines, sankalp ship. sonar waves consists of a transmitter and detector which are installed in the observation centre on board of a ship. the ultrasonic waves are sent into the sea at high frequency about 1000 khz in all direction.