The main goal of science is to a. learn how to use the laws of nature to benefit humans. b. learn about the universe and the laws of nature. c. replace old theories with new, more interesting theories. d. develop new inventions and processes.

Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

Macy always thought there were only a few hair colors blonde brown and black however when she actually began looking around she saw varying shades of these hair color what is a possible reason for so many different hair colors

Can a molecule have bond dipoles but not have a molecular dipole?