Answer: The first one
Explanation:
Because it’s the higher frequency
Answer:
<em>Well, I think the best answer will be is </em><em>B) Gravity. Good luck!</em>

let's use first equation of motion to solve this ;
Velocity after 30 seconds = 170 m/s
B. Reversing the current direction will cause the force deflecting the
wire to be perpendicular to the magnetic field but in the opposite
direction.
To throw stuff. Like in the old'n days they used them to destroy castles.