A positive charge of 4.0 µC exerts an attractive force of 8 N on an unknown charge 20 cm away. The unknown charge i

A positive charge of 9 µC exerts and attractive force of 1 N on an unknown charge 0.8 m away. The unknown charge in µC:

Two charged particles are a distance of 1.92 m from each other. One of the particles has a charge of 8.01 nC, and the other has a charge of 4.10 nC. (a) What is the magnitude (in N) of the electric force that one particle exerts on the other? N (b) Is the force attractive or repulsive? O attractive O repulsive

A 7.45-nC charge is located 1.75 m from a 3.90-nC point charge. (a) Find the magnitude of the electrostatic force that one charge exerts on the other. N (b) Is the force attractive or repulsive? attractive O repulsive

Let's say two unknown charges are given to you. You do not know their individual charges, but you know that their total charge is  8.00µC.    You made a test in the laboratory and found that these two charges push each other away with a force of 0.150 N when separated by 0.500 m. What is the charge of the "higher charge" in units of  µC ?

Two point charges are on the x-axis. One charge, q1 = 8.0 nC, is located at the origin, and the other charge, q2 = 19.0 nC, is located at x = 3.00 m. What is the force on q2?

A 8.08-nC charge is located 1.79 m from a 4.02-nC point charge. (a) Find the magnitude of the electrostatic force that one charge exerts on the other. (b) Is the force attractive or repulsive? attractive repulsive

A 26.3-g mass is suspended 4.35 cm above a nonconducting flat plate, directly above an embedded charge of q.  a) If the mass has the same charge, q, how much must q be so that the mass levitates (just floats, neither rising nor falling)? b) If the charge q is produced by adding electrons to the mass, by how much will the mass be changed?

A -9.00 uC point charge and +7.00 uC point charge are placed along the x-axis at x = 0.000 m and x = 0.400m, respectively. Where must a third charge, q, be placed along the x-axis so that it does not experience any net electric force due to the other two charges?

Six electric field lines are drawn coming from a positive charge of 3 nC. Many of these lines end on a nearby second charged object, but two of the lines escape out to infinity. What charge must that second object carry?