Translate the given Spanish text to English

[Q]: Each cell is operated in series.
[A]: Cada celda se opera en serie.


[Q]: A resonant frequency of the vibrational body is received.
[A]: Una frecuencia resonante de cuerpo vibratorio es recibida.


[Q]: The N-alkyl heterocyclic compound has formula (I).
[A]:
El compuesto N-alquilo heterociclico tiene la formula (I).