Me i really need ! can someone put this in order here are the options: amplitude, crest, trough, and wavelength picture down below.

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?

If a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction b. remain at rest c. accelerate in the negative x-direction