Hi i need help with these question the doc has all the info
In conclusion, how did your hypothesis of moon phases match your moon phase model?
In what ways could you continue to investigate the changing positions of the Earth-Sun-moon system?

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

answer; (d) spontaneous processes are characterized by the overall conversion of order to disorder;

c. newton's third law of motion

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.