In the picture of the atom above, what subatomic particles does the letter a represent?

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?

Mga halaman/punong ornamental na di namumulaklak

How will the system respond to a temperature increase?