Two objects, each with a charge of +0.15 C are separated by a distance of 3 meters. a) Are the masses repelling or attracting?
b) What is the magnitude of the electrical force between the objects?
c) What would the magnitude of the force be if one of the charges was 1/3 the amount?
d) What would the force be if the distance between the charges was only 1 meter (with the original charges)?
e) What would the force be if one of the charges was 1/3 the amount AND the distance was 1 meter?

A . Are the masses repelling or attracting

So, positive energy densities ("masses") attract each other by gravitational interaction. This is the general idea.

B. What is the magnitude of the electrical force between the objects?

answer:

The magnitude of the electrostatic force F between two point charges q1 and q2 is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them.

C. What would the magnitude of the force be if one of the charges was 1/3 the amount?

0.45

D. ) What would the force be if the distance between the charges was only 1 meter (with the original charges)?

answer;

Fmin=2.3×10^−28N

E: What would the force be if one of the charges was 1/3 the amount AND the distance was 1 meter?

answer;

Electrostatic force is directly related to the charge of each object. So if the charge of one object is doubled, then the force will become two times greater.

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a.   mass number from atomic number