Select the correct algebraic form for the equation to be used for this calculation. n equals StartFraction R T over P V EndFraction.

n equals StartFraction P V over R T EndFraction.

n equals StartFraction R V over P T EndFraction.

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?

Plz mark brainliest 30 points1) 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?