A7.0-μc point charge and a point charge are initially extremely far apart. how much work does it take to bring the point charge to the point , and the point charge to the point ( k = 1/4 πε 0 = 9.0 × 10 9 n ∙ m 2/c 2)?

Complete question:

A 7.0 -μC point charge and a 9.0 -μC point charge are initially infinitely far apart. How much work does it take to bring the 7.0-μC point charge to x=3.0 mm, y= 0.0mm and the 9.0-μC point charge to x=-3.0 mm, y=0.0 mm? (the value of k is 9.0*10^9 N*m^2/C^2)

Explanation:

Work done in bringing a unit positive charge from infinity to that point in electric filed (V) = Electric field strength X distance

where;

K is a constant = 9X10⁹ N.m²/C²

q is point charge in C

d is the distance in m

--------------------------------------------------------------------------------------------

Work done in bringing 7.0-μC point charge from infinity to x=3.0 mm, y= 0.0mm

V = 21 x 10⁶ Volts

Work done in bringing 9.0-μC point charge from infinity to x=-3.0 mm, y=0.0 mm

V = -27 x 10⁶ Volts

--------------------------------------------------------------------------------------------

Work done in bringing 7.0-μC point charge from infinity to x=3.0 mm, y= 0.0mm is 21 x 10⁶ Volts While work done in bringing 9.0-μC point charge from infinity to x=-3.0 mm, y=0.0 mm is -27 x 10⁶ Volts.

they are non-matter

explanation:

they are non-matter. basically, any type of energy or any abstract concept is an example of something that does not matter. other examples include dreams, magnetism, radio, and hate