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A billion solar mass black hole has a radius of only:
Exhausted
A state of extreme physical or mental fatigue, or the depletion of resources or materials.
Aircraft Production
The manufacturing process of building aircraft, which involves complex planning, design, assembly, and testing of various types of aircraft.
Concrete Mixing
Concrete mixing involves combining water, aggregate, cement, and any desired additives to form concrete that meets specific performance requirements.
Diminishing Returns
A principle stating that as investment in a particular area increases, the rate of profit from that investment, after a certain point, cannot continue to increase if other variables remain at a constant.
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