I'm in dire need of some , the first correct response receives brainlest! a 1,000 g ball and a 100 g ball are both dropped from a tower. both balls have the same size and there is no air resitance. which one hits the ground first? a. the 100 g mass hits the ground first b. the 1000 g mass hits the ground first c. they both hit at the same time

If they're dropped from the same height at the same time and there's no air resistance, the the lighter ball and the heavier ball, as well as a feather, a hammer, a bowling ball, a speck of dust, a school bus, and a battle ship, will all fall side-by-side and hit the ground at the same time.  

We've known this for about 400 years, since Galileo.  And we've known WHY for about 300 years, since Newton.

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.

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle