Mathematics: A marble dropped in still water will create circular ripples or waves. The radius of each circular wave will increase 4 centimeters per second. What is the circumference of the circle after t seconds?

b = 4Step-by-step explanation:...

A marble dropped in still water will create circular

izzyisawesome5232

29.01.2022

Circumference of the circle after t seconds = $8\pi t$ = 25.12t

Step-by-step explanation:

Given

radius of each circular wave will increase 4

centimeters per second

In 1 second radius of circular wave = 4cm

in 1*t second radius of circular wave = 4*t cm

Thus, radius of circular wave after t second will be 4*t cm

We know that circumference of circle is given by = $2\pi r$

where r is the radius of the circle

Thus, radius of circular wave after t second will be = $2\pi$ * radius of circular wave after t second = $2\pi 4t = 8\pi t$

taking $\pi$ = 3.14

radius of circular wave after t second will be = 8*3.14*t= 25.12t

Thus, circumference of the circle after t seconds = $8\pi t$ = 25.12t

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