Please answer with all work thanks!!

Which of the following is considered to be a vector?               a.  temperature    b.  velocity    c.  time    d.  mass

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^?

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering