Draw arrows for all of the attractive and repulsive forces between the negatively charged electrons and
positively charged protons in these atoms. Make sure your arrows
clearly show the difference between attractive and repulsive forces.
Note that the particles without a charge label are neutral.

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

The biosphere of the earth is made up of what compound? organic or inorganic?

Which change to the system wood cause the freely-moving piston to lower?