The amplitude of a simple pendulum is reduced to half of the original value after 1 minute of oscillation.
What percent of the initial amplitude is the amplitude of the pendulum after two minutes?
What percent of the total initial energy is converted to internal energy after 2 oscillations?
If the simple pendulum consists of a 70 cm long thread and a body of mass 1 kg. By how much does the natural frequency decrease due to damping? Express the result to exactly 3 decimal places.