Airbags became mandatory in all cars in 1998 and it estimated that they have saved the lives of over 50,000 people in that time. The benefit of airbags is that they .

Protons and neutrons are found within the nucleus of an atom

Light that is polarized along the vertical direction is incident on a sheet of polarizing material. only 96% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. no light passes through the second sheet. what angle does the transmission axis of the second sheet make with the vertical?

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f