9. which one of the following statements accurately describes a characteristic of adolescence?

a. serious teenage rebellion is common to most adolescents.
b. teenage boys tend to be more open about their feelings than teenage girls are.
c. adolescents tend to break ties with their families.
d. most adolescents like to spend some time alone.

i think the answer is a, hope this is right, that would be my best guess.

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.