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SCI206 Lecture Notes - Lecture 2: Wave, Standing Wave, Electromagnet

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greyyak960
22 Sep 2015
School
University of Waterloo
Department
Science
Course
SCI206
Professor
Stefan Idziak

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Document Summary

Can have a wave travelling down the string. String moves up and down forming a wave that travels along the string. Pressure is a force exerted over an area. Sound is an example of this type of wave. Strong force on a large area has same pressure as weak force on a small area. Frequency (f) the number of oscillations that occur in a second. Period (t) the time it takes for one oscillation to occur. Speed of travelling wave = frequency x wavelength. Why does string move up and down?restoring force from tension in the string. The mass keeps moving, past the bottom and off to the right. The string then pulls the mass to the left. Restoring force (always tries to bring the mass to equilibrium) Period of pendulum (time to go back and forth) only depends on length of the string. Gear rotates 1/30 of a revolution for each pendulum period.

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Related Questions

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9. Finally, you should write a program MontrealMaps which will suggest a path to go along the metro to get from one place to another. The only required method for MontrealMaps is a main method but of course you are allowed to write others. Your program should do the following. For any library methods that you use, make sure that you are properly importing things and handling any exceptions they may throw. (10 points) • Using an appropriate library method, you should create a Subway System object. If this method fails to initialize, you should print the message Error, not enough funding. • Use a Scanner and print statements to read the current x and y position of the user. • Use a Scanner and print statements to read the x and y position that the user wants to go to. . Find the nearest Metro Station to both the start position of the user and his final destination. • If the 2 metro stations have the same name (i.e. are the same metro station) then print It is fastest to walk there. • Otherwise, call the method findPath from the previous part to find a path from these 2 metro stations. . If the method returns null, then print Sorry, there is no path on the metro, you'll have to walk • Otherwise, print the path using the metro using the method printPath defined in the MapUtilities class in the appendix. SUMMARY OF JAVA STANDARD LIBRARY METHODS POR SELECTED CLASSES • String package java.lang) Methods - public boolean gist and e rs is stingeancoject - puble boolean grease Sering another ca t ering String paint i th Stre C h eshilly before the Stripe with striert w Single weiter water N ENE fusha -publish tohy Casting de . File( p age java.io) Methods r eate - publie Yiling path : C • Scanner (package java.ut 1) Method -ple S ule - double Double Sc - le bon when : S Scanner tal de fethede h able othebean - puble String Best Mus eethe u s tepal -pulle haalean haxtLine: Check the hea ther in left PrintStream( p age java.io) Methods pul vaid pri Pribonaat - puli wid pride d oble vile. - pille vaid print Print vei. -pulle vaid printject o: Prints Object -puli vaid printString : Prints String .. - vaid primi The theme line by writing the li n e tie id print in bool bl. Prise n value the - public void platinabled Prints double ved and then the line - public void printit Prints Ent value and then tomis the - Pull vaid pri l l be t he minime publie wild prin t ing with String in the terminates the line • ArrayLiat package java.util) Methods - public boolean Arraybettype was a new ArrayList

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