A screw-jack used to lift a bus is a A) first order lever
B) second order lever
C) pulley
D) screw

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?

Which is not true about oxygen-17 and oxygen-18?

A( developed during the process of technology design