Not sure .sorry I just don't understand.
The basic relationship between the frequency of a wave and its period is

where f is the frequency and T the period of vibration.
In our problem, the frequency is

so, by re-arranging the previous formula, we can find the period of the wave:
Answer:
the red at the bottom should not count, but the red at the top is the least dense because it floats upon the other liquids
Explanation:
hope this helps
Explanation : Tina is doing work all of the time because whiles she’s pulling and allowing the rope to be pulled her body using muscles to keep herself upright and a firm grip on the rope.
Answer: So if the kinetic energy increases, then the objects thermal energy increases.
Explanation: