Jill puts her face in front of a convex mirror, 18 cm from the focal point of the mirror. if the focal point is located 12 cm from the mirror, where will her image appear? a. 4 cm behind the mirror b. 8 cm behind the mirror c. 4 cm in front of the mirror d. 8 cm in front of the mirror

Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.

On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the youngest unit in the center, the underlying structure is a(n)

What is the role of lenses in microscopy?