It takes 486.0 kj/mol to convert sodium atoms to na+ ions. sodium atoms absorb and emit light of wavelengths 589.6 and 590.0 nm. calculate the energy of the 590.0 nm light in kilojoules per mole.

Plz mark brainliest 30 points 1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s. 2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

All forces cause motion? true or false