2. A 12 gram steel projectile is shot horizontally at 20.0 m/s from the top of a 49.0 m high tower. How far from the base of the tower does the projectile hit the ground? What angle is needed to reach the furthest distance
away from the tower? If the original projectile was replaced with a steel projectile with a 20 gram mass, how far
from the base of the tower would the new projectile hit the ground?

These models show the electron structures of two different nonmetal elements. which element is likely more reactive, and why? element 1 is more reactive because it has fewer electron shells and is toward the top of its group on the periodic table. element 1 is more reactive because it has more electrons in its valence shell and is farther to the right on the periodic table. element 2 is more reactive because it does not have a valence shell close to the nucleus, so it will attract electrons. element 2 is more reactive because it does not have a full valence shell, so it will attract electrons.

Can somebody explain to me how newton's 3rd law relates to momentum? ~ap physics 1

Phase changes are chemical changes. true or false