If a new material is found that is a superconductor at all temperatures, what parts of some common electric devices would definitely not be made out of it

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?

How do the kidneys affect homeostasis

Amajor difference radio waves, visible light, and gamma rays is the of the photons, which results in different photon frequencies and wavelengths