Explain how alcohol or drugs can act as a positive reinforcement and negative reinforcement.

Drugs like Marijuana help u relax while other hard drugs such as Meth or Heroin could kill u

Explanation:

hope it helps

im saying this so you could give the other person brainliest.

Explanation:

ek = (m.v2) / 2

v - velocity of system after the collision

m = m1 + m2

ek = (m1 + m2) v2/2

ek = (200 + 250) 2,32/2 = 450*5,29/2 = 1190,25 j

by: nicholas dooley