Two forces are described below: Force 1: The force which attracts iron nails towards a magnet
Force 2: The force which attracts a positive charge towards a negative charge

Which statement is true about the forces?

Both are contact forces.
Both are non-contact forces.
Force 1 is a contact force and Force 2 is a non-contact force.
Force 1 is a non-contact force and Force 2 is a contact force.

the higher the current the higher the mag field around it the higher the influence on the compass

a=d/t

a="triangle"v/t

explanation:

a = acceleration

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me

answer: 31, 5556. 952 seconds