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Physic A Level 9702 w 16 Questiion Paper 21
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  This document consists of 13  printed pages and 3  blank pages. DC (KN/FD) 116308/2 © UCLES 2016 [Turn over Cambridge International Examinations Cambridge International Advanced Subsidiary and Advanced Level * 7 71 0 72 0 0 31* PHYSICS   9702/21 Paper 2 AS Level Structured Questions October/November 2016   1 hour 15 minutes Candidates answer on the Question Paper.No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number, candidate number and name on all the work you hand in.Write in dark blue or black pen.You may use an HB pencil for any diagrams or graphs.Do not use staples, paper clips, glue or correction fluid.DO NOT  WRITE IN ANY BARCODES.Answer all  questions.Electronic calculators may be used.You may lose marks if you do not show your working or if you do not use appropriate units.At the end of the examination, fasten all your work securely together.The number of marks is given in brackets [ ] at the end of each question or part question.  2 9702/21/O/N/16 © UCLES 2016 Data speed of light in free space c = 3.00 × 10 8  m s −1 permeability of free space μ  0   = 4 π  × 10 −7  H m −1 permittivity of free space ε  0   = 8.85 × 10 −12  F m −1  (14 π ε  0  = 8.99 × 10 9  m F −1 ) elementary charge e = 1.60 × 10 −19  Cthe Planck constant h = 6.63 × 10 −34  J sunified atomic mass unit 1 u   = 1.66 × 10 −27  kgrest mass of electron m  e   = 9.11 × 10 −31  kgrest mass of proton m  p   = 1.67 × 10 −27  kgmolar gas constant R = 8.31 J K −1  mol −1 the Avogadro constant N  A   = 6.02 × 10 23  mol −1 the Boltzmann constant k = 1.38 × 10 −23  J K −1 gravitational constant G = 6.67 × 10 −11  N m 2  kg −2 acceleration of free fall g = 9.81 m s −2  3 9702/21/O/N/16 © UCLES 2016 [Turn overFormulae uniformly accelerated motion s   = ut + 12   at  2   v  2  = u  2   +   2 as  work done on/by a gas W   = p  Δ V  gravitational potential φ   = −  Gm r  hydrostatic pressure p   = ρ  gh  pressure of an ideal gas p   = 13   Nm V   〈 c  2 〉 simple harmonic motion a   = − ω    2 x  velocity of particle in s.h.m. v   = v  0  cos ω  t    v   = ± ω     √⎯⎯⎯⎯⎯⎯⎯⎯⎯ ( x  02  – x  2 )Doppler effect f  o  = f  s v v   ± v  s electric potential V   = Q  4 π ε  0 r  capacitors in series 1/  C   = 1/  C  1  + 1/  C  2  + . . .capacitors in parallel C   = C  1  + C  2  + . . .energy of charged capacitor W   = 12   QV  electric current I   = Anvq  resistors in series R   = R  1  + R  2  + . . .resistors in parallel 1/  R   = 1/  R  1  + 1/  R  2  + . . .Hall voltage V  H  = B  I  ntq  alternating current/voltage x   = x  0  sin ω    t  radioactive decay x   = x  0  exp(− λ  t  )decay constant λ   = 0.693 t  12  4 9702/21/O/N/16 © UCLES 2016 BLANK PAGE
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