A wave has a wavelength of 1.5 meters and period of 0.083s. What is the waves speed?

Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?

How many atoms of nitrogen are in the chemical formula ni(w on

Alandscaper is shopping for landscaping materials. she wants to use materials through which water flows easily. which materials should she choose? check all that apply. clay gravel granite rocks with cracks loosely packed soil