PLEASE HELP ME A man fires a bullet from a gun. The bullet flies with a velocity of 200m/s. how long will
the bullet to hit with a target of 800m away?

4 seconds

Explanation:

bullet flies 200m/s. thus 800m/200m=4sec

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.