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5 questions
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  • Q1
    Identify the charges of the left and right particles.
    Question Image
    Left: positive, Right: positive
    Left: negative, Right: positive
    Left: negative, Right: negative
    Left: positive, Right: negative
    120s
    112.39.c.5.c
  • Q2
    If you wanted to know the magnitude of the electric force on the test charge, what equation would you need?
    Question Image
    F=ma
    F=-kx
    Fe=kq1q2/r^2
    Fg=Gm1m2/r^2
    120s
    112.39.c.5.c
  • Q3
    Which of the following is the best description of the (direction of the) net force on the charge once it is released?
    Question Image
    Left
    Zero
    Right
    Up
    120s
    112.39.c.5.c
  • Q4
    Coulomb’s law provides an equation to solve for the electric force between two charged particles, but here there are 3 particles total. How would you calculate the total electric force on the test charge at point P?
    Question Image
    Can't be calculated.
    Calculate the force between the test charge and the left particle.
    Calculate the force between the test charge and the right particle
    Calculate the force between the test charge and the left and right particles individually, and then add those two forces to get the net force.
    120s
    112.39.c.5.c
  • Q5
    Calculate the magnitude of the electric force on the test charge if it has a charge of 1C, the particle on the left has a charge of 2C, the particle on the right has a charge of -2C, and the distance between the test charge and each particle is 0.5m. For now let's assume k=1 to keep it simple.
    Question Image
    16N left
    8N right
    8N left
    16N right
    120s
    112.39.c.5.c

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