P202_EXAM1

P202_EXAM1 - DEPARTMENT OF PHYSICS INDIANA UNIVERSITY P202:...

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DEPARTMENT OF PHYSICS INDIANA UNIVERSITY P202: GENERAL PHYSICS II FIRST EXAM     Thursday,  September 22, 2005: 7:00 – 8:30 pm Use a  no. 2 pencil  and blacken all appropriate circles fully. Fill in your  Student ID number  in the spaces provided, and blacken the appropriate circles. Print your last name  in the space provided and blacken the appropriate circles. Sign the answer sheet above the space where you entered your name. Blacken the circles on your answer sheet corresponding to your answers on the exam pages. Be careful in making the transfer correctly and then check. Please check that this copy of the exam is complete (with 12 questions), then circle the letter corresponding to the  one best answer  on the exam pages and  copy answers onto the scantron sheet. Hand in the scantron sheet at 8:30 pm Physical Constants: Speed of light in vacuum c = 3.00  ×  10 8  m/s Permittivity of free space ε 0  = 8.85  ×  10 - 12  C 2 /N m 2   Coulomb constant k = 1/4 πε 0   k = 8.99  ×  10 9  N m 2 /C 2   Elementary charge e = 1.60  ×  10 - 19  C  Charge of electron Q e  =  - e Charge of proton Q p  = +e Electron mass m e  = 9.11  ×  10 - 31   kg Proton mass m p  = 1.673  ×  10 - 27   kg Neutron mass m n  = 1.675  ×  10 - 27   kg  Avogadro’s number N A  = 6.02  ×  10 23   mol - 1   Gravitational constant G = 6.67  ×  10 - 11   N m 2 /kg 2  
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Standard free-fall acceleration g = 9.80 m/s 2   1 inch = 2.54 cm 1 eV = 1.60  ×  10 - 19  J  1. A balloon is charged with excess charge. This balloon is then put in a space with an uniform electric field pointing towards +x direction. When there is no wind around, this balloon is observed moving towards the -x direction. What is the sign of excess charge on the balloon?           (A ) Positive.           (B ) Negative.
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This note was uploaded on 07/02/2011 for the course PHYS 202 taught by Professor Warren during the Spring '09 term at Indiana.

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P202_EXAM1 - DEPARTMENT OF PHYSICS INDIANA UNIVERSITY P202:...

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