Question

You are standing in the desert and hear an explosion in the distance (Las Vegas is blowing up an old casino). The explosive experts used 100 kg of TNT (an explosive that releases 4.184 x 108 J) and the explosion took 100 milliseconds to complete (it was a uniform explosion). The sound level you hear is 100 dB. How far are you from the explosion? Assume 0.01% of all the energy released left as sound.

* appreciate if you dont skip steps and explain the thought process cause for some reason once people post solutions, the dont ever check the comment section if we have a follow up question

Answer 1