w D L- พ L พ พ The cross-section of a wooden, built-up beam is shown below. The dimensions are L = 210 mm and w = (Figure 1) 25 mm. Determine the magnitude of the moment M that must be applied to the beam to create a compressive stress of σD = 34 MPa at point D. Also calculate the maximum stress developed in the beam. The moment M is applied in the vertical plane about the geometric center of the beam. Express your answers, separated by a comma, to three significant figures.

Direction: Circle T to indicate true statements or F to indicate false statements. Copper is not a conductor of electricity because only materials that are magnetic can conduct electricity.

Two materials, A and B, are to be separated using two unit operations, 1 and 2. The feed has 10 tons/h A and 4 tons/h B. The split (fraction of material rejected by each operation) is given in Table P5-14. a. Which sequence of operations, (l?2) or (2?1), will yield the greatest recovery of material A? b. What will be the purity of material A using that sequence? c. What will be the efficiency of separation for the entire process train with regard to material A using the Worrell-Stesed equation?

Collect information on the American Wire Gage (AWG) standards. Create a table for annealed copper wires showing the gage number, diameter in mils, cross-sectional area, and resistance per 1000 ft.