Which of the three objects is the largest? Explain your answer.

The object in figure C is a planet, so it is the largest object. Planets are larger than comets and asteroids.

Explanation:

so easy. just google the electromagnetic waves and it’ll pop up.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.