Answer:
I think it's TRUE because forces change an object's motion but dont quote me on it ok? Cause I'm not a 100 percent sure
Answer:
F = 5.33 10⁻⁶ N , directed to the left
Explanation:
For this exercise we will use the force addition law where each force is electric given by Coulomb's law
F = ∑ F
F = F₁₃ + F₂₃
where the force is given by
F = k q₁ q₂ / r₁₂²
in our case
F₁₃ = k q₁ q₃ / r₁₃²
F₂₃ = k q₂ q₃ / r₂₃²
F = k q₃ (q₁ / r₁₃² + q₂ / r₂₃²)
as the charges are of the same sign the electric force is repulsive and due to the position of the charges it is directed to the left
let's calculate
F = 9 10⁹ 8 10⁻⁹ (3 10⁻⁹ / (0.26 - 0) 2 + 6 10⁻⁹ / (0.45-0) 2)
F = 72 (44,379 + 29,630) 10⁻⁹
F = 5.33 10⁻⁶ N
directed to the left
The image distance is 33.3 cm while the image height is 14.2 cm.
<h3>What is a converging lens?</h3>
A converging lens will always have a positive focal length hence, we have to find the object distance as follows;
1/f = 1/v + 1/u
1/12 = 1/v + 1/20
1/v = 1/12 - 1/20
1/v = 0.08 - 0.05
v =33.3 cm
Now;
Magnification = 33.3 cm/20.0 cm =1.67
M = Image height/Object height
1.67 = Image height/8.50 cm
Image height = 1.67 * 8.50 cm
Image height = 14.2 cm
Learn more about focal length:brainly.com/question/16188698
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