The 2D particle in a box model can be used to describe the spectra of aromatic hydrocarbons. Assume a rectangular box that extends one bond length beyond the carbon atoms to contain the hydrogen atoms in the box. Hint: You will have to use some trigonometry basics to get the relevant dimensions. Calculate the first three electronic transitions for pyrene (bond length 1.42 Angstroms).

Hot gaes Expanding A mixture hot gases expands, changing volume from 2.45 L to 6.82 L, against a constant pressure of 3.22 atm. The P-Vwork involved is Latm .

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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