Which type of evidence is not permitted to be shipped by mail to a crime lab?

strands of fiber, stained with blood

a shirt that showed signs of gunshot reside

a bomb a suspect intended to use in a crime

blood samples intended to be analyzed for dna comparisons

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?

Which bonds are found inside a water molecule