When making a peanut butter sandwich, consider that the bottom piece of bread is fixed. If the knife you use to spread the peanut butter at 0.1 m/s experiences a shearing stress of 41 Pa, what is the viscotity in Pascals times seconds if the thickness of your peanut butter is is 3 cm? Assume that a linear velocity profile develops through the peanut butter layer.

В The 3-ft length of steel pipe (Et = 29 x 10° ksi) has a cross-sectional area of 2.0 in? and rests on the fixed support A. The 1-in.-diameter aluminum rod (Eal = 10 × 10° ksi) is fastened to a rigid plate B that sits atop the pipe. Determine the displacement of point C when the 3 ft load P = 20 kip is applied. Assume the materials are linear elastic. 2 ft C P

A metal specimen was subjected to a Vickers hardness test. The indentation on the surface of the specimen had a measured diagonal, d, of 0.24mm and the Vickers hardness number was calculated at a value of 482.91kgf/mm2. Determine the applied force, F, that was used to test the specimen. Also,determine the Tensile Strength of the metal, assuming it is hard.

Steel beams are used for load bearing supports in a building. Each beam is 4.0 m long with a cross-sectional area of 8.5 × 103 m² and supports a load of 4.7 x 10“ N. Young's modulus for steel is 210 x 109 N/m2. (a) How much compression (in mm) does each beam adergo along its length? 0.00012 Consider the basic definition for Young's modulus. mm (b) Determine the maximum load (in N) one of these beams can support without any structural failure if the compressive strength of steel is 1.50 x 108 N/m². N. Additional Materials