1) A coiled spring, with spring coefficient of 4s, hangs from the ceiling with a 2Kg ball attached to the end. The ball is oscillating up and down. wint is the period of oscillation for the bali?​

Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.

Within a pendulum, as potential energy decreases, energy increases. a. heat b. kinetic c. frictional d. gravitational

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?