A rubber ball with a mass of 0.67 kg is released from rest from a height of 10 meters above the ground.

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A rubber ball with a mass of 0.67 kg is released from rest from a height of 10 meters above the ground. Due to the interaction with the ground, each time it bounces it loses some of its total mechanical energy to non-conservative forces and it bounces to 67 percent of its height before it hit the ground. After 4 bounces, how much total energy is lost, in Joules?

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