Answer:

Explanation:
As we know that the speed of the wave in string is given as

now we will have
frequency of the wave is given as


now if the ant will feel weightlessness then we will have

so we will have



Hypothesis
Let there is no air drag or any other resistance force due to surrounding
Now the force equation of ball is given as



so the ball will be dropped down by acceleration a = g and this acceleration is independent of size and mass of the ball
So in this case both balls will be dropped by same acceleration.
So here both balls will hit the ground at same time
Ithoshpere is space sheeld. asthenosphere next sheets of sky
A and B i think is the answer
Explanation:
They will repel, meaning that they are made of an electrical conductor.