They attract if they are oppositely charged and they repel if they have the same charges.
Answer:
The bullet will rise 320 meters above the point of projection.
Explanation:
Assuming that air friction is negligent we can use the kinematic equation:

*acceleration is negative (-a) as it is acting in the opposite direction of the motion of the bullet.*
For this case we can write each one of the vectors in the following way:

This means that the x-axis is defined as positive towards the west.
Then, the resulting vector is:

Answer:
Displacement vectors of 10 m west and 14 m west make a resultant vector that is 24 m west
Answer:
First answer.
Explanation:
There may be a 5N force, but if the frictional force also equals 5N, than they cancel eachother out, resulting in the brick still staying still, as it is resting on a (perfectly) level surface, but any amount of force would make the brick move.
Answer:
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