12 cells each of emf 2v and of internal resistance
0.5ohm are arranged in a battery of n rows
and an enternal resistance 0.4ohm is connected
to the pole of the battery. estimate the current
flowing through the resistance in terms of m

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.

Which notation is used to represent an alpha particle? a. b. c. d.

When electrons are added to the outermost shell of a carbon atom, it forms--an anion that has a larger anion that has a smaller cation that has a larger cation that has a smaller radius.