Rusty is a forensic investigator examining the crime scene of a homicide. The medical examiner has determined that the victim died of a gunshot wound. However, there are no bullets or cartridge casings found at the scene. What type of evidence might show striations that might lead to a specific weapon?

The presence of dust on the victim's right or left hand

Explanation:

The presence of powder, the route of the bullet, and the damage the bullet generates tells us what the caliber of the weapon was like, and type.

The presence of gunpowder in the hand is a consequence of the person being shot, usually in the victim's skilled hand.

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

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