Give Ideas to create hearing instruments to fix hearing problem in space, as you know sound waves can’t travel through empty space. 5 to 8 ideas and please use common words so the miss doesn’t know I’m cheating <3 ty again

Students in an introductory physics lab are performing an experiment with a parallel-plate capacitor made of two circular aluminum plates, each 11 cm in diameter, separated by 1.0 cm. how much charge can be added to each of the plates before a spark jumps between the two plates? for such flat electrodes, assume that value of 3×106n/c of the field causes a spark.