No spacecraft has been built yet that was able to absorb harmful
radiations in space, change weather conditions on Earth, or destroy
meteors and comets which might strike Earth.
We should continue to send robotic spacecrafts into space
because they help discard some myths about objects in space.
In other words, they help us learn things that we never knew before.
Answer:
5-The force on A is exactly equal to the force on B.
Explanation:
This is proven mathematically:
The force on A by B is given as:
F(A, B) = [K * Q(A) * Q(B)] / R²
The force on B by A is given as:
F(B, A) = [K * Q(B) * Q(A)] / R²
Where K = Coulombs constant
R is the distance between them
Examining the two formulas closely show that they yield the same result.