Our official constellations are from which of the following cultures?

Under normal temperature and pressure conditions, what type of rock could be formed from weathering in erosion of metamorphic rock

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.