An ocean wave is represented by cosine curve, where the time it takes to go from its crest highest point to its lowest point is four seconds what is the period

8 s

Step-by-step explanation:

The time, t it takes the wave to move from its crest highest point to its lowest point is half of its period, T.

That is t = T/2

Given that t = 4 s, and making T subject of the formula, we have

T = 2t

Substituting t = 4 s into T, we have

T = 2t

T = 2 × 4 s

T = 8 s

So, its period is 8 s

step-by-step explanation:

left be aligning the decimal points is required to not required see the number of digits to the right