ionic bonds form when a nonmetal and a metal exchange electrons, while covalent bonds form when electrons are shared between two nonmetals. an ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions.
the mass is attached to the spring vertically, so at equilibrium the force of gravity pulling down on the mass will equal the spring force acting upwards on the mass.
f = mg
m is the mass.
g is the acceleration due to earth's gravity.
for the spring:
f = kδx
k is the spring constant.
δx is the spring extension.
set the force of gravity and spring force equal to each other:
mg = kδx
m = 8.4 kg
g = 9.81 m/s²
k = 4.7 n/m
substitute the terms in the equation with the given values and solve for δx:
8.4×9.81 = 4.7δxδx = 17.53 m
once the ball is thrown the only forces acting on it would gravity and air resistance. typically air resistance has small enough impact on the object that it can be ignored in introductory science classes. so let's go with that just gravity is acting on the object. gravity only acts in the vertical direction and causes object to accelerate downward. you said that the ball was thrown horizontally so gravity will begin to pull it down as soon as it is released, therefore making the height that it was thrown from the maximum height of it's path. the horizontal velocity does not effect vertical position.