Considering that the highest intensity in the nitrogen spectrum is, in fact, recorded for radiation with a frequency of about 8.88×1014 HzHz , will your eyes be able to detect this radiation?

The charge of an ion with 55 protons and 52 electrons is +3. the reason is because protons are positive, and there are three more than the amount of negative electrons.

Amplify and switch electrical power and electronic signals

Answer(a)   the matererials that are in contact, the two materials and the nature of their surfaces/// (b)/// the force pushing the two surfaces together, pushing the surfaces together causes the more of the asperities to come together and increases the surface area in contact with each other