At 2.20 ms after S1 is opened, the current has decayed to 0.260 A. Calculate the inductance of the coil.

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

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 =

Ascientist wants to test ways to reduce pollution in lake . what is the bestway of doing this