Three particles are fixed in place and have charges q1=q2=2q>0 and q3=q<0. What are the magnitude and direction of the net electric field at point P due to the particles?

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

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?

Global climatic patterns are changing because of the melting of polar ice caps. the melting of polar ice caps is an example of the interaction between the atmosphere and cryosphere cryosphere and geosphere hydrosphere and geosphere biosphere and cryosphere