PHYSICS 240 Final -- Fall 2003-1

PHYSICS 240 Final -- Fall 2003-1 - Physics 240 Fall 2003:...

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Physics 240 Fall 2003: Final Exam Please print your name:___________________________________________________ Please list your discussion section number:___________________________________ Please list your discussion instructor:________________________________________ Form #1 Instructions 1. Fill in your name above 2. This will be a 2 hour, closed book exam. The exam includes 25 questions. 3. You may use a calculator, please do not share calculators 4. You may use four 3”x5” note cards (three from the earlier exams, plus one new one) with notes and equations you think may be useful. You can write on both sides of the card if you like. 5. You may be asked to show your University student ID card when you turn in your exam. ID checked by:___________________________________ Table of constants: ε 0 = 8.85 x 10 -12 C 2 /Nm 2 k = 1/(4 πε 0 ) q electron =-1.6 x 10 -19 C q proton =1.6 x 10 -19 C m electron =9.1 x 10 -31 kg m proton =1.67 x 10 -27 kg μ 0 = 4 π x 10 -7 Tm/A G = 6.67 x 10 -11 Nm 2 /kg 2
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1: A scuba diver looks up through the calm surface of a lake and notes that the Sun seems to be 40 ° away from straight overhead. The diver’s friend sits in a boat above him. At what angle from the straight overhead does the friend see the Sun? The index of refraction of water is 1.3. A) 57 ° B) 33 ° C) 40 ° D) 48 ° E) 52 ° 2: Which of the following statements is true? A) Constant magnetic fields are produced only by permanent magnets B) Constant electric fields can be produced by changing magnetic fields C) Electric fields are only produced by electric charges D) Electric fields must be zero inside all materials E) Changing electric fields can be produced by constant magnetic fields
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radius ‘a’ by a cylindrical conducting shell with inner radius b and outer radius c (see the figure). If the inner conductor holds a charge per unit length 2 λ , and the outer conductor holds a charge per unit length - λ , what is the magnitude of the electric field between the conductors, at a radius r from the center of the inner conductor? A) 2 0 4 r πε λ B) r 0 C) r 0 2 D) r 0 2 2 E) r 0 2 6.2 μ m a b c r Retroreflector on the Moon
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PHYSICS 240 Final -- Fall 2003-1 - Physics 240 Fall 2003:...

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