Problem: Post-punk is a heterogeneous type of rock music that emerged in the wake of the punk movement of the 1970s. Drawing inspiration from elements of punk rock while departing from its musical conventions and wider cultural affiliations, post-punk music was marked by varied, experimentalist sensibilities and its "conceptual assault" on rock tradition. Artists embraced electronic music, black dance styles and the avant-garde, as well as novel recording technology and production techniques. The movement also saw the frequent intersection of music with art and politics, as artists liberally drew on sources such as critical theory, cinema, performance art and modernist literature. Accompanying these musical developments were subcultures that produced visual art, multimedia performances, independent record labels and fanzines in conjunction with the music.
What elements of punk rock did post-punk have in common?
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Answer: unanswerable


Problem: As a boy, Schwarzenegger played several sports, heavily influenced by his father. He picked up his first barbell in 1960, when his soccer coach took his team to a local gym. At the age of 14, he chose bodybuilding over soccer as a career. Schwarzenegger has responded to a question asking if he was 13 when he started weightlifting: "I actually started weight training when I was 15, but I'd been participating in sports, like soccer, for years, so I felt that although I was slim, I was well-developed, at least enough so that I could start going to the gym and start Olympic lifting." However, his official website biography claims: "At 14, he started an intensive training program with Dan Farmer, studied psychology at 15 (to learn more about the power of mind over body) and at 17, officially started his competitive career." During a speech in 2001, he said, "My own plan formed when I was 14 years old. My father had wanted me to be a police officer like he was. My mother wanted me to go to trade school." Schwarzenegger took to visiting a gym in Graz, where he also frequented the local movie theaters to see bodybuilding idols such as Reg Park, Steve Reeves, and Johnny Weissmuller on the big screen. When Reeves died in 2000, Schwarzenegger fondly remembered him: "As a teenager, I grew up with Steve Reeves. His remarkable accomplishments allowed me a sense of what was possible, when others around me didn't always understand my dreams. Steve Reeves has been part of everything I've ever been fortunate enough to achieve." In 1961, Schwarzenegger met former Mr. Austria Kurt Marnul, who invited him to train at the gym in Graz. He was so dedicated as a youngster that he broke into the local gym on weekends, when it was usually closed, so that he could train. "It would make me sick to miss a workout... I knew I couldn't look at myself in the mirror the next morning if I didn't do it." When Schwarzenegger was asked about his first movie experience as a boy, he replied: "I was very young, but I remember my father taking me to the Austrian theaters and seeing some newsreels. The first real movie I saw, that I distinctly remember, was a John Wayne movie."
Which of Schwarzenegger's bodybuilding idols died in 2000?
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Answer: Steve Reeves


Problem: The phase of reflection of electromagnetic waves depends on the polarization of the incident wave. Given the larger refractive index of the ground (typically n=2) compared to air (n=1), the phase of horizontally polarized radiation is reversed upon reflection (a phase shift of  radians or 180°). On the other hand, the vertical component of the wave's electric field is reflected at grazing angles of incidence approximately in phase. These phase shifts apply as well to a ground modelled as a good electrical conductor.
What is the refractive index of air?
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Answer:
n=1