If frequency goes up, what happens to wavelength? does it get shorter or longer?

The wavelength goes down if the velocity of the wave is constant

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation