Answer: The correct answer is : cohort effects
Explanation: The cohort study is a kind of analytical research and with observation, where a comparison is made of the frequency of occurrence of an event between two groups, one group is exposed to a factor that is not present in the other group. In a cohort study the research can be prospective or retrospective.
I believe the answer is concentration technique
Concentration technique is a type of technique that being done to influence our state of mind by repeating the desired stated of mind in our head over and over again. (you can see it through carrie's action that keep repeating the word "Calm" in order to achieve that state of mind)
The frequency of the wave currently with 5m of wavelength is 120Hz, with the speed of 600 M/S.
If you changed the wavelength from 5m to 10m, only the wave meter and wavelength is changed. It would be 60m.
60m is your final answer.
The answer is True Department of sate is responsible
Whats up i might be able to help so long it isnt math