Which car has the most momentum? A. a 1,820 kg car traveling east at 30 m/s
B. A 2,270 kg car that is stationary
C. A 1.460 kg car that is traveling south at 80 m/s
D. a 730 kg car that is traveling north at 90 m/s

When a septic tank backs up a goes in to clean it out

Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.