G In a molecule with only one stereocenter, explain how RR and SS are related to ( ) and (-). In a molecule with only one stereocenter, explain how and are related to ( ) and (-). if one configuration (say, RR) is ( ), the other one (SS) is (-) RR corresponds to (-) and SS corresponds to ( ) RR corresponds to ( ) and SS corresponds to (-) there is no way to relate RR/SS configuration to /- configuration

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied