0.33 seconds is the period of a wave with a frequency of 3 Hz and an amplitude off 0.01 .
<u>Explanation:</u>
We have , period of a wave with a frequency of 3 Hz and an amplitude off 0.01 . We know that period of a wave is amount of time needed to complete one oscillation . In order to calculate period of wave we use frequency and the formula use is
. We are given that frequency = 3 Hz:

⇒ 
⇒ 
⇒ 
Therefore, 0.33 seconds is the period of a wave with a frequency of 3 Hz and an amplitude off 0.01 .
Answer:
I think section #3
Explanation:
When i was in science class in my memory it was always in that area
The correct answer is option B. The most dense phase of matter is the solid phase and the least dense are gases. However, there is an exception. Water is the exception. Solid water or ice is less dense than the liquid phase therefore it floats on liquid water.
It's absolutely TRUE...........