Discuss in detail, one way in which atomic nuclear decay takes place. what is the significance of atomic nuclear decay? analyze the societal implications of using this process.

Atomic Nuclear's significance is that it proves the idea of quantum tunneling in the branch of quantum physics. The barriers that keep nuclear energy together are very high. Quantum mechanics sometimes tells us that particles can sometimes tunnel through the walls over they cannot climb and it happens at random intervals and unpredictably. 
The social implications of using this process are the same as the social implications of using any natural phenomenon.

Efficiency is an act of doing something

The objects are acted upon by only one force. gravity. mass times the acceleration of gravity (-9.81meters/second squared).