In a uniform electric field near the surface of the earth, a particle having a charge of -2.0 x 10 −
9
C is acted on by a downward electric force of 3.0 x 10
−
6
N.

If the speed of a particle triples ,by what factor does its kinetic energy increase?

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.

What happens when the number of protons in an atom changes