in the diagram below, two of the three rays used to find the image position are shown. which of the following best describes the third (missing) ray?

Since the pully is a simple machine so the mechanical advantage is a 1

Answerthe force between the charges will be  f/9 (one-ninth of force f)explanationcoulomb's law relates the magnitudes  two point charges q₁ and q₂, the distance, r, between the charges, and the electrostatic force, f, between the two charges:     k represents coulomb's constant, k = 8.99×10⁹ n·m²/c².note that if we have r = 3r, then   

The net force would equal 13 newtons , forward. the mass will accelerate. balanced forces: when forces are in balance, acceleration is zero. velocity is constant and there is no net or unbalanced force.hope this : )