describe how would their weight change on a small planet like mercury? or a larger planet like neptune?

Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.

The two required components for a generator

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is