What is the electric potential energy of an electron at the negative end of the cable, relative to the positive end of the cable? In other words, assume that the electric potential of the positive terminal is 0 V and that of the negative terminal is −12V. Recall that e=1.60×10−19C.

Explanation:

charge of electron, e = 1.6 x 10^-19 C

V1 = 0 V

V2 = -12 V

Change in potential, ΔV = V1 - V2 = 0 - ( - 12) = 12 V

potential energy, U = q x ΔV

U = 1.6 x 10^-19 x 12

U = 1.92 x 10^-18 J

3. dark matter

empty space could also be a simple vacuum

the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.