11. Which of the following would likely be the best reflector of heat energy?
2 answers:
You might be interested in
The electrostatic force between two charges is given by
where
ke is the Coulomb's constant
q1 and q2 are the two charges
r is the separation between the charges
In our problem,
Therefore the electrostatic force is
where
ke is the Coulomb's constant
q1 and q2 are the two charges
r is the separation between the charges
In our problem,
Therefore the electrostatic force is
Had to submit as image as it wouldn't let me paste these symbols in the answer box
hope this helps:)
Answer:
Part a)
Part b)
Explanation:
Part a)
As we know that the target is at distance 75 m from the hunter position
so here we will have
here we know that
so we have
now in the same time bullet will go vertically downwards by distance
Part b)
In order to hit the target at same level we need to shot at such angle that the range will be 75 m
so here we have