If there are two forces acting on a rocket, and the forces are equal and opposite, then they add up to zero, and there is no NET force at all on the rocket.
Then the rocket can only move at a constant speed in a straight line. It can't have any acceleration (change of speed or direction.)
A. All natural radiation is at a level low enough to be safe
Answer:
71 cm
Explanation:
Every 100 mm is equal to 10 cm. Hope this helps!
-B because metal hardly breaks but non metal items such as glass or plastic does!
Missing figure of the problem: http://tsephysics.weebly.com/uploads/5/1/9/3/51934203/477140_orig.jpg
Solution:
Assuming the potential is zero at infinite distance from the charge, then the potential at a certain distance r from a single point charge is
where
is the Coulomb's constant.
In our problem, we just have to superimpose the potential generated by every charge. The diagonal of the square is
, therefore the distance between each charge and the center of the square is
.
So, the total potential is: