Two flat, rectangular plates with a lateral dimension w*l lie parallel, one above the other, a distance h apart. The gap between them is filled with molten polymer. One plate is fixed; the other moves parallel to it in the direction of the dimension l at velocity v, causing the fluid to be sheared. Show that the fluid is displac
Steel producers expect to cut output by 10 percent in 2009 in response to cancelled orders from construction companies and car and household appliance producers. (Source: Financial Times, December 28, 2008.)
- Does the cancellation of orders change the demand for steel, the quantity demanded, the supply of steel, or the quant
The concept of thermal resistance described in Problem 5 can be used to find the temperature distribution in the flat square plate shown in Figure 5(a).
The plate's edges are insulated so that no heat can escape, except at two points where the edge temperature is heated to Ta and Tb, respectively. The temperat
1. "7x50" binoculars magnify angles by a factor of 7.0, and their objective lenses have an aperture of 50 mm diameter.
(a) According to Rayleigh's criterion, what is the intrinsic angular resolution of these binoculars? Assume that the light have a wavelength of 500 nm.
(b) At best, the pupil of your eye has an aperture