A tetrahedron has an equilateral triangle base with 20-cm-long edges and three equilateral triangle sides. The base is parallel to the ground, and a vertical uniform electric field of strength 200 N/C passes upward through the tetrahedron. a. What is the electric flux through the base? b. What is the electric flux through each of the three sides?

BiogeographyinaChangingWorld GEOG2 Lecture8:Dispersal ProfessorD.Cusack dcusack@geog.ucla.edu Office:1113Bunche 1 Chapter8:MainPoints • Ecologicalvs.biogeographicaldispersal • Modesofdispersal(anemo-hydro-zoo-andanthro-chores) • Colonizationvs.Migrationsvs.Irruptions • Logisticgrowthincolonization –...