Answer: learn how to do it on your own idiot
Explanation: try hard in school
Answer:
12.97 km
Explanation:
In order to find the resultant displacement, we have to resolve each of the 3 displacements along the x and y direction.
Taking north as positive y direction and east as positive x-direction, we have:
- Displacement 1: 2.00 km to the north
So

- Displacement 2: 60.0° south of east for 7.00 km
So

- Displacement 3: 9.50 km 35.0° north of east
So

So the net displacement along the two directions is:

So, the distance between the initial and final position is equal to the magnitude of the net displacement:

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
.
Answer:

Explanation:
From the question we are told that:
Current 
Angle 
Magnetic field 
Length 
Generally the equation for Magnetic force F is mathematically given by

Therefore

