Using Coulomb's Law Of Electrostatics. Solve The Following Problems…

Using Coulomb’s law of electrostatics. Solve the
following problems.
1.Compute the force of attraction between a +1.60 x 10^-19 C charge and a -2.09 x 10^-18C
charge if they are 4.10 x 10^-10 m apart.
2.Calculate the repulsive force between a +1.15 x 10^-9 charge and a +1.49 x 10^-8 C charge if a distance of 2.01 x 10-^20 m separates them.​

Answer:

COULOMB’S LAW

F

=

k

∣

q

1

q

2

∣

r

2

Coulomb’s law calculates the magnitude of the force F between two point charges, q1 and q2, separated by a distance r. In SI units, the constant k is equal to

k

=

8.988

×

10

9

N

⋅

m

2

C

2

≈

8.99

×

10

9

N

⋅

m

2

C

2

The electrostatic force is a vector quantity and is expressed in units of newtons. The force is understood to be along the line

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