Atomicpower

3 clues
AP physics subject?
Electricity producer, perhaps
What the Enola Gay's bomb carried
Similar answers:
Acpower
Anatomic
Anatomical
Anatomies
Anatomist
Atomic
Atomicage
Atomical
Atomicblast
Atomicbomb
Atomicbombe
Atomicbombs
Atomiccage
Atomicclock
Atomicdog
Atomicdustbin
Atomicenergy
Atomicenergyact
Atomicfireballs
Atomicjazzstone