What evidence have you discovered to describe a wave

Aparticle with mass 1.81×10−3 kg and a charge of 1.22×10−8 c has, at a given instant, a velocity v⃗ =(3.00×104m/s)j^. what are the magnitude and direction of the particle’s acceleration produced by a uniform magnetic field b⃗ =(1.63t)i^+(0.980t)j^?

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =