In class, we learned how to calculate the details of energy related to our pendulum.

**Mass = 6kg
Initial height = 1m
**

Using the mass & height measurements of our pendulum, it looks like the energy stored is:

**58.8 Jules.**

Assuming we allowed the Pendulum to run for a full two minutes, the average power at which the initial energy was transferred to the environment is **0.49 watts.**

And if we were able to use all the initial potential energy in just 10 seconds, we would have **5.88 watts**. Interestingly, an iPhone is charged at 5 watts!