The figure shows a group of three particles, all of which have charge Q = 8.8 nC. How much work did it take to assemble this group of charges if they all started out extremely far from each other? 

The length of a certain wire is kept same while its radius is doubled. What is the new resistance of this wire?

As a proton moves in a direction perpendicular to the electric field lines

The three point charges +4.0 μC, -5.0 μC, and -9.0 μC are placed on the x-axis at the points x = 0 cm, x = 40 cm, and x = 120 cm, respectively. What is the x component of the electrostatic force on the -9.0 μC charge due to the other two charges? 

A hydrogen nucleus, which has a charge +e, is situated to the left of a carbon nucleus, which has a charge +6e. Which statement is true?

Programmers employ the acronym ____ to mean that if your input is incorrect, your output is worthless.

If the result of your calculation of a quantity has SI units kg ∙ m2/(s2 ∙ C), that quantity could be

One point charge +Q is placed at the center of a square, and a second point charge -Q is placed at the upper-left corner of the square. It is observed that an electrostatic force of magnitude 2.0 N acts on the positive charge at the center. Now a third charge -Q is placed at the lower-left corner of the square, as shown in the figure. What is the magnitude of the net force that acts on the center charge now?

Name the structure labeled “J”

Which of the following is a correct statement regarding using the microscope?