The force produced on a particle of charge q by an electric field of intensity E is
in our problem, the force is F=5.0 N while the charge is q=2.0 C, so we can find the intensity of the electric field:
The relationship between electric field intensity and potential difference
between two points A and B is
where d is the distance between the two points. By using d=6.0 m, we find
where the negative sign means that the initial point, VA, is at higher potential than the final point VB.
To develop this problem it is necessary to apply the concepts related to the angular resolution of a telescope as well as to the arc length.
The arc length can be defined as
Where
r= Radius
\theta = Angle
At the same time the angular resolution of a body is given under the proportion
Where
= Wavelength
D = Diameter
Our values are given as
Then the angle of separation of the two objects seen from the observer is of
Finally, using the proportion of the arc length, in which we have the radius and angle we can know the separation of the two objects by:
Answer: Inertia
Explanation: without inertia gravity could pull down whatever it wanted, Inertia is whats keeping the rock on the hill
This question is full of misleading, marginally meaningful phrases.
The question itself should be asking about "electric current", not "electricity".
The term "electricity" certain includes static electricity, where NOTHING moves.
Of the choices offered, choice 'A' is the closest. But it should say
"electrical potential", NOT "potential energy".
Each of the other three choices is absurd.