Two charges of opposite sign and equal magnitude Q = 0.82 C are held 2.0 m apart as shown in the figure. Reference: Ref 19-5 Determine the electric potential at the point P.

Before the 1880s, most immigrants came from _________; after the 1880s, most immigrants came from _______.

The figure below shows four parallel plate capacitors: A, B, C, and D. Each capacitor carries the same charge q and has the same plate area A. As suggested by the figure, the plates of capacitors A and C are separated by a distance d while those of B and D are separated by a distance 2d. Capacitors A and B are maintained in vacuum while capacitors C and D contain dielectrics with constant κ = 5. Reference: Ref 19-9 Which capacitor is storing the greatest amount of electric potential energy?

How many grams of caffeine would you need in order to prepare 75 mL of a 15 µM solution of caffeine? The Mw of caffeine is 456 g/mol.

In the English Peppered moth example, which is incorrect:

The sketch below shows cross sections of equipotential surfaces between two charged conductors that are shown in solid grey. Various points on the equipotential surfaces near the conductors are labeled A, B, C, …, I. Reference: Ref 19-6 At which of the labeled points will an electron have the greatest potential energy?

Extra space only if needed.

In ocean acidification:

Please select from the following dilutions in order to make a 1:900 dilution in the least amount of steps. Please select all that apply.

Dominic Price calls his inventory the