Cora, an electrician, wraps a copper wire with a thick plastic coating. what is she most likely trying to do?
keep the electric potential of the wire balanced
decrease the wire’s resistance
increase the voltage produced by the wire
keep a current from passing out of the wire

p. s. if you're good at physics pm me, could use some on a quiz.

Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.