Is gas matter? How do you know? Hint: Remember there are 2 things we need to be considered matter. please help me understand, doesn't have science and I wish it did.

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

Asap i'm in class rn a 1,000-kg car is traveling 20 m/s on a flat stretch of road. it gets to a hill and coasts uphill until it stops. how high up the hill does the car travel? givens: equation: 1/2mv2initial=mghfinal solve for h. plug & chug, label.

The heliocentric and the geocentric models of the solar system included these central principles