How might a forensic scientist evaluate bullets to verify if they are a match beyond just looking at them? (A)Use colored filters to overlay the left and right images, one over the other, to look for darkened areas.
(B)Shave a small sample from each bullet and compare it under a compound microscope for matching elements.
(C)Use microspectrophotometry to see if the bullets exhibit the same spectra under the comparison microscope.
(D)Use a computer match program which inspects the images for areas that are matching.
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Clothing made of several thin layers of fabric with trapped air in between, often called ski clothing, is commonly used in cold climates because it is light, fashionable, and a very effective thermal insulator. so it is no surprise that such clothing has largely replaced thickand heavy old-fashioned coats. (a) consider a jacket made of five layers of 0.1-mm-thick synthetic fabric (k = 0.13 w/m·°c) with 1.5-mm-thick air space (k = 0.026 w/m·°c) between the layers. assuming the inner surface temperature of the jacket to be 28°c and the surface area to be 1.25 m2, determine the rate of heat loss through the jacket when the temperature of the outdoors is 0°c and the heat transfer coefficient at the outer surface is 25 w/m2·°c. (b) what would your response be if the jacket is made of a single layer of 0.5-mm-thick synthetic fabric? what should be the thickness of a wool fabric (k = 0.035 w/m·°c) if the person is to achieve the same level of thermal comfort wearing a thick wool coat instead of a five-layer ski jacket?

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

The energy of a photon is equal to (what) times (what) of the photon.