The charge q4 is now replaced by charge q5 which has the same magnitude, but opposite sign from q4 (i. e., q5 = 1.4 μC). What is the new value for the potential energy of the system?

answer: i don't know the answer good luck

explanation:

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.

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.

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