Two point charges are fixed on the y axis: a negative point charge q1 = -24 µc at y1 = +0.19 m and a positive point charge q2 at y2 = +0.33 m. a third point charge q = +8.0 µc is fixed at the origin. the net electrostatic force exerted on the charge q by the other two charges has a magnitude of 18 n and points in the +y direction. determine the magnitude of q2.

What is the mass of the same rock on the earth

Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =

Explain what will happen if decomposers were apsent from a forest ecoysystem.