Find current v1,v2 and v3 note r3=3r1 and r3=2r2

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods