What is the repulsive force between two pith balls that are 8.00 cm apart and have equal charges of – 30.0 nC?
Two point charges exert a 5.00 N force on each other. What will the force become if the distance between them is increased by a factor of three?
If two equal charges each of 1 C each are separated in air by a distance of 1 km, what is the magnitude of the force acting between them? You will see that even at a distance as large as 1 km, the repulsive force is substantial because 1 C is a very significant amount of charge.
Point charges of 5.00 μC and –3.00 μC are placed 0.250 m apart. (a) Where can a third charge be placed so that the net force on it is zero? (b) If both charges are positive but with the same magnitude where would you have to place the charge so that the net force on it is zero? It doesn’t matter if the charge you are placing is positive or negative just call it ‘q’.
Three charged spheres are anchored at the vertices of an equilateral triangle with sides 0.250 meters. Each sphere carries a charge of 0.025 nC or 2.5E-11 C. If charges 1 and 2 are on the x-axis and the third is located above the x-axis, calculate the magnitude and direction of the force for charge number 3.
Determine the electrical force that two protons in the Helium nucleus exert on each other given a separation distance of 2.0E-15 meters.
Two identical small metal spheres are separated by 1.0E5 meters and exert a repulsive force of 18.9 Newtons on each other. A wire is connected between the spheres and the repulsive becomes 22.5 N. a) Explain why the magnitude of the repulsive force changed when the wire was connected. b.) What is the charge on each sphere after the wire is connected? c.) What was the charge on each sphere before the wire was connected?Note: This problem may require a quadratic equation for part c. Get the equation in standard form and use an app to solve it either online or with your phone :)