The entire premises of this question infers to the concept of Creation. So the reason why the universe was created, in that sense, was so god could create a land to support the civilization he wanted.
Answer:
adding to or more vectors together . When displacement vectors are added, the result is a resultant displacement. But any two vectors can be added as long as they are the same vector quantity.
Explanation:
Answer:
|F| = 2.09 × 10⁻⁸ assuming that the two ions are point charges.
Explanation:
What's the charge on each ion?
The symbol 
here stands for fundamental charge. Each electron carries a negative fundamental charge of -e. Each proton carry a positive fundamental charge of +e.
Molecules and atoms are neutral. They contain an equal number of electrons and protons. Remove one electron from a molecule or atom, and that particle will end up with more protons (which are positive) than electrons. That particle will carry a positive charge of +e become an ion (a cation to be precise.) Remove another electron and the ion will carry a charge of +2e.
For each ion 
.
What's the size of the electrostatic force between the two ions?
Consider Coulomb's Law for the electrostatic force 
between two point charges:
,
where
is Coulomb's constant,
and 
are the charge on the two point charges, and
is the separation between the two charges.
Make sure that all values are in SI units. Assume that the two ions are small enough that they act like point charges:
.
The value of is negative, meaning that the two charges will repel each other because they are both positive. The question is asking for the magnitude of this force. Thus drop the sign in front of to obtain 
, which is the magnitude of .
H = 40 m, the height from which the ball is dropped.
m = 1 kg, the mass of the ball
Assume g = 9.8 m/s² and neglect air resistance.
The initial vertical velocity is zero.
If t = the time of flight, then
40 m = (1/2)*g*(t s)² = 0.5*9.8*t²
t² = 40/4.9 = 8.1633
t = 2.857 s
Answer: 2.9 s (nearest tenth)
