Four students presented different analogies to describe the formation of an ionic bond. student a: two countries using a common waterway for navigation student b: a small dog and a big dog tugging at a bone with equal strength student c: two neighbors carpooling to work student d: assets of a small company being taken over by a large company which student presented a correct analogy?

The correct student would be student D since an ionic bond is made up of a metal and nonmetal where metals usually give electrons and nonmetals take.

the answer is true. hope it .

(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