Three point charges lie on the x axis. Charge 1 (+9.1 μC ) is at the origin, charge 2 (-5.9 μC ) is at x = 12 cm, and charge 3 (+4.3 μC ) is at x = 15 cm. k=8.99×10^9 N⋅m^2/C^2. What is the direction of the total force exerted on charge 3?
What is the magnitude of the total force exerted on charge 3?

There are weak or strong attractive forces between atoms of liquids with a high viscosity

Four point charges each having charge q are located at the corners of a square having sides of length a. find symbolic expressions for the following. (a) the total electric potential at the center of the square due to the four charges (use any variable or symbol stated above along with the following as necessary: ke.) vtotal= (b) the work required to bring a fifth charge p from infinity to the center of the square (use any variable or symbol stated above along with the following as necessary: w=

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