Specification of Support Beam Dimensions You are asked to design a support beam used to suspend a heavy load under tension. The beam has a square cross section and is made of steel with a nominal yield strength of 325 MPa. What are the minimum dimensions of this beam if it must suspend a mass of 10,000 kg? Assume a factor of safety of 4.

Two students perform the analysis of an alloy containing aluminum and zinc by the same method that we used in Experiment 2. They obtained the following data 0.007 g Mass of empty gelatin capsule Mass of gelatin capsule plus alloy sample 0.336 g 141.209 g Mass of empty beaker Mass of beaker plus displaced water 307.712 g 20 °C Temperature of water (and reaction mixture) Barometric pressure Density of water at 20°C 29.32 in. Hg 0.09982 g/mL 17.5 mm Hg Vapor pressure of water at 20°C What is n ? H₂ -2 a. 3.103 x 10 b. 6.336 x 10 c. 4.442 x 10 d. 3.030 x 10 e. 1.089 x 10 -1 -2

22. Based on your understanding of the relationships between the structures and physical properties of elements and compounds, which of the substances (Table 1) is most likely a nonmetallic element? Why? Explain your reasoning at least two (2) sentences.

A movie stunt performer is filming a scene where he swings across a river on a vine. The safety crew must use a vine with enough strength so that it doesn't break while swinging. The stunt performer's mass is 88.0 kg, the vine is 12.0 m long, and the speed of the stunt performer at the bottom of the swing has been determined to be 8.60 m/s. What is the minimum tension force (in N) the vine must be able to support without breaking? N Need Help? Submit Answer Read It