□ 30. In 1851 Jean Bernard Leon Foucault demonstrated the

Last updated: 7/30/2022

□ 30. In 1851 Jean Bernard Leon Foucault demonstrated the rotation of the earth using a pendulum 11.0 m long, which was set up in the Paris Observatory. How long would it have taken for Foucault's pendulum to make one complete swing back to its starting point if g = 9.81 m/s2 at the observatory? 1.79 s O 5.63 s O2.12 s 2.58 s 6.65 s