Which of these is not an example of firearm identification? A Determining a .45 caliber round was fired from a Colt Magnum
B Determining the shot that created a bullet hole came from 10 feet away at a 45° angle
C Determining that there is gunpowder residue on a suspect's hands and shirt
D Determining that the victim has a conceal and carry permit

The ozone hole appears in antarctica during

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 =

Matter that emits no light at any wavelength is called