One sees an emission spectrum from a neon sign
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50 points

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

the area between the graph and the t axis

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach