Two 100 kg bumper cars are moving toward each other in opposite directions. Car A is moving at 8 m/s and Car Bat -10 m/s when they collide head-on. If the resulting velocity of Car B after the collision is 8 m/s, what is the velocity of Car A after the collision? (2 points)
а) -8 m/s
b)-10 m/s
c) 0 m/s
d)10 m/s

absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.

emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

explanation:

multiply 2kg by latent heat of vap

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide