Two children use a homemade "telephone" consisting of two paper cups attached by an aluminum wire which is 8.4 m long. Determine the time for the "sound" to travel from one cup to the other. How does this compare with the time for sound to travel the same distance through air? (speed of sound in aluminum is 5100 m/s, in air is 343 m/s)

Explanation:

Distance over wire of aluminium d = 8.4 m

velocity of sound in aluminium = 5100 m /s

time required = distance / velocity

= 8.4 / 5100 s

= .001647 s

velocity of sound in air = 343 m /s

time required = distance / velocity

= 8.4 / 343 s

= .024489 s

Difference of time

= .024489 - .001647

= .022842 s

= 22.842 ms .

false br

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