While observing a pendulum on a coil spring weighing 1 kg, the time taken for 10 oscillations is 10 s.
What is the spring coefficient of this pendulum?
If the amplitude of oscillation of the pendulum drops by 5 % with each oscillation, what is its damping coefficient?
If the initial maximum displacement of the pendulum is 10 cm, what is its displacement after 10 oscillations?
What is the total energy 
at the beginning of the oscillation?
What is the total energy 
after 10 oscillations?
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