GEOG 2030 Lecture Notes - Lecture 10: Carbon Sink, Vise, Environmental Migrant

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9 May 2016

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The questions for the exam on december 12th will come directly from the list below. There are a lot of them, but there is also a lot of overlap between them (eg many questions in section 2 will make use of the answers from sectin 1). Remember you are allowed to bring in one 8. 5x11 page, double sided, hand-written notes. I recommend using that page to write down facts and figures you don"t want to commit to memory and outlines of your essay/paragraph questions. It is 2 hours long and worth 25% of your final grade. The tutorial for unit 11 is online and consists of. Q&a with myself, the tas and each other. Recognize that the job of the instructors in the class is to guide your learning, not give you the answers nor to confirm whether you would get full marks for a particular answer. 5 of the following questions will appear on the exam.

Related Questions

If you experienced these lab questions or have knowledge aboutthem, please help me out answer them.

1) Your timing error can be as much as 0.2s. Why was it better totime twenty cycles and find the average time rather than to findthe time for one cylce twenty times and average the results?

2) If you displace the end of the spring a little or a lot, inother words if you change the amplitude of the oscillation, theperiod will be exactly the same. How can this happen? what is thediffrent about the motion of the spring? How does this relate tothe equations you used in this experiment?

In this problem, you will be asked to calculate the magnetic field due to a set of two wires with antiparallel currents as shown in the diagram (Figure 1) . Each of the wires carries a current of magnitude I. The current in wire 1 is directed out of the page and that in wire 2 is directed into the page. The distance between the wires is 2d. The x axis is perpendicular to the line connecting the wires and is equidistant from the wires.

As you answer the questions posed here, try to look for a pattern in your answers.

Part A

Which of the vectors best represents the direction of the magnetic field created at point K (see the diagram in the problem introduction) by wire 1 alone?

Enter the number of the vector with the appropriate direction.

Part B

Which of the vectors best represents the direction of the magnetic field created at point K by wire 2 alone?

Enter the number of the vector with the appropriate direction.

Part C

Which of these vectors best represents the direction of the net magnetic field created at point K by both wires?

Enter the number of the vector with the appropriate direction.

Part D

Point M is located a distance 2d from the midpoint between the two wires. Find the magnitude of the magnetic field B1M created at point M by wire 1.

Express your answer in terms of I, d, and appropriate constants.

B1M=

Part E

Find the magnitude of the net magnetic field BM created at point M by both wires.

Express your answer in terms of I, d, and appropriate constants.

BM=

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GEOG 2030 Lecture Notes - Lecture 10: Carbon Sink, Vise, Environmental Migrant

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