According to social learning theory, who is the primary teacher

Albert Bandura

Explanation:

According to the researches of Albert Badura, the theory of social learning is about how people learn one from others, through imitation and observation. That is how, or example, kids learn new vocabulary, listening to other kids from school.

It is called social learning because it needs the attention of the observed person, the ability to repeat what is seen.

chapters are in the book (this fleeting world)

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