How is the iris of an eye similar to the diaphragm of a film camera? question 4 options: they both produce an upside-down image. they both control the amount of light passing through. they both control the movement of the lens. they both focus light rays.

How do we measure or think of speed in the united states?

Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt