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.
Aerodynamics, from Greek á¼Î®Ï aer (air) + Î´ÏÎ½Î±Î¼Î¹ÎºÎ® (dynamics), is a branch of Fluid dynamics concerned with studying the motion of air, particularly when it interacts with a solid object, such as an airplane wing.n aerodynamics, hypersonic speeds are speeds that are highly supersonic. In the 1970s, the term generally came to refer to speeds of Mach 5 (5 times the speed of sound) and above. The hypersonic regime is a subset of the supersonic regime.