The term used to describe how light is reflected from a mineral’s surface is
a.
fluorescence.
b.
streak.
c.
density.
d.
luster.

Why cooking gas has a typical smell

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^?

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity