1. The problem statement, all variables and given/known data The Bohr model of the hydrogem atom has one electron rotating around its center. If it has a radius of 5.29 * 10-11 m. And the mass of the electron is : 9.11 * 10-31. And the electrostatic force between the orbiting electron and the center proton is 8.20 * 10-8. Find: 1) the centripetal acceleration of the electron 2) The linear speed of the electron 3) the period of the the electrons rotation 2. Relevant equations t = 2 ∏ r / V 3. The attempt at a solution Part 1 I managed to calculated. I got the correct answer of ac = 9.00 * 1022. I also found that Velocity is equal to 2182104.645 ms/s. However for the period and the linear speed im stuck. For the period I get: t = 2 ∏ r / V t = 1.52321 * 10-16 ^according to the answer sheet this answer is wrong and should be, 4.82*10-16 For the linear speed im stuck. What exactly am I finding? I have no idea what to do. ^ the apparent answer is 6.9 x 105 NOTE: Answers may be wrong as this textbook often has incorrect answers. Thanks!