A photoelectric-effect experiment finds a stopping potential of 1.56 V when light of 200 nm is used to illuminate the cathode. a. From what metal is the cathode made? b. What is the stopping potential if the intensity of the light is doubled?
Amanda Edmonds 1/30/2013 Eng 101 Rhetorical Analysis The Free Expression Tunnel The free expression tunnel is a place provided for students of North Carolina State University to freely express themselves by use of art and graffiti. While the main goal of the free expression tunnel is to prevent students from vandalizing the campus elsewhere, it also serves as an outlet for students who choose to voice their opinions and thoughts through art The rhetorical situation of the free expression tunnel is easily identifiable. The various paintings and pieces of art located in the free expression tunnel appeal to the students of North Carolina State University. The free expression tunnel shows students that NC State accepts