Ball A is projected vertically upward at 30 m/s from a point P. Four seconds later, ball B is also launched vertically upwards from the same point P and also at 30 m/s. For how long has ball A been in motion when two balls collide

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.

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.

Three charge are arranged as shown in the diagram. the magnitude of the net electrical force acting on the +6 uc charge, rounded to the tenths place, is .