If general relativity offers the best description of what happens in the presence of gravity, why do physicists still make use of newton’s equations in describing gravitational forces on earth (when building a bridge, for example)?

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?

What occurs during a combustion reaction

What is the equation for electrical work?