Find the final momentum when an object with a mass of 25 grams traveling with a velocity of 20 m/sec collides with a stationary object having a mass of 45 grams.

hypostyle hall;

it's 3.2 on edge, i just took the test.

5 structural isomers

the isomers are:

n-exane :   ch3ch2ch2ch2ch2ch3

2-methylpentane :   ch3ch(ch3)ch2ch2ch3

3-methylpentane :   ch3ch2ch(ch3)ch2ch3

2,3-dimethylbutane :   (ch3)2chch(ch3)2

2,2-dimethylbutane :   (ch3)3cch2ch3