Final answer:
Thor traditionally possesses one hammer called Mjolnir, capable of summoning lightning bolts. This hammer is unique and enchanted with special properties in Marvel lore. Numerical values such as '75 hammers, lightning bolts, shields, swords' are not a factual representation of Thor's possessions.
Step-by-step explanation:
The question relates to the Marvel character Thor and the items he possesses. Despite what might be shown in comics or movies, traditionally, Thor has one signature weapon, which is a hammer named Mjolnir. This hammer is often depicted with the power to summon lightning bolts. Therefore, the correct answer is not a numerical value but rather an understanding of Thor's association with his iconic hammer.
In the scene from the 2012 movie "The Avengers" where Thor throws his hammer at Iron Man, there is a physical analysis to be made using Newton's laws of motion and kinematics. However, Thor's hammer is unique in its properties according to Marvel lore, including its enchanted ability to be lifted only by those who are 'worthy' and to be summoned back to Thor's hand, defying conventional physics at times. In terms of Thor's control over the hammer, it could be said that he has one hammer that he can control with his mind.