Investigator Campbell has bullets that were collected from the crime scene and puts them under her comparison microscope. What other item would she need to examine? The victim's clothing with the gunshot hole

Test bullets fired from the suspected gun

A bullet that has been fired into a wall or hard surface

The barrel of the suspected gun

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)

1. how to locate the image in converging(concave) mirror and diverging (convex) mirror with salt. 2. how to locate the image in a converging (convex) lens and diverging (concave) lens with salt.

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z