The observer in (Eigure 1) is positioned so that the far edge of the bottom of the empty glass (not to scale) is just visible. When the glass is filled to the top with water, the center of the bottom of the glass is just visible to the observer. Part A Find the height, H, of the glass, given that its width is W = 4.4 cm. Express your answer using two significant figures. H- cm Submit Resuest Answer Provide Feedback Figure O 1 of 1 W-

Need help to figure out how to work problem.

As a project, some students are planning to determine the speed of light using Michelson's speed of light apparatus (shown below). For their experiment they plan to have a distance Doe between the mirrors. For N=1, they need an angular speed of we If they decrease the distance by a factor of 2. what angular speed (in terms of se) would they need for the N=1 case? Rotating Observer Light source Stationary mirror A ASK YOUR TEACHER

At the very end of Wagner's series of operas Ring of the Nibelung, Brünnhilde takes the golden ring from the finger of the dead Siegfried and throws it into the Rhine, where it sinks to the bottom of the river. Part A Assuming that the ring is small enough compared to the depth of the river to be treated as a point and that depth of the Rhine where the ring goes in is 12.8 m, what is the area of the largest circle at the surface of the water over which light from the ring could escape from the water? Use 1.33 for the index of refraction of water. Express your answer in meters squared. A = —| ΑΣΦ ? m²