7.A hiker shouts toward a vertical cliff that is 685 m away. The echo is heard 4.0 s later. (a) What is the sound wave’s speed (v)? (b) The wavelength (λ) of the sound is 0.75 m. What is the wave’s frequency (f)? (c) What is the wave’s period (T)?

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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

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.