2. Your credit score. Different people can be eligible for different interest rates. When you apply for a credit card, the credit card company checks your credit score to see if you are a good credit risk, and if your score is good, youâll be eligible for the best (lowest) interest rates.f you do not pay your credit bills on time, your credit card company can (and usually will) increase your interest rate. The amount that it gets increased depends on the individual situation, but it can be quite a lot.
hypersonic: Of, relating to, or capable of speed equal to or exceeding five times the speed of sound.
Travel becomes hypersonic when temperatures get so hot that the air molecules become unstable and start losing electrons. At low temperatures, the air is made up of oxygen and nitrogen electrons, but at hypersonic speed, the air begins to change chemically and becomes an electrically-charged field.