Answer:
I cannot read that language that u put so people might not be able to answer it
By increasing the distance between the two objects.
The answer is C. Hope it helps
Answer:
20 A
Explanation:
Given
Spring pulled from position
x = 5A
we need to calculate total distance of one full cycle of spring motion
if you see image below, you understand easily
When cycle complete
Its total distance become 20 A
Answer:

Explanation:
From the question we are told that
Volume V
Contains N particles
Leaks from a small hole of area A
Generally the equation for Flow rate is given as
Volume Flow Rate 
Mathematically we find the time taken to flow half way which is given by

Therefore the time taken is
