A) Experiments. Opinion polls are used to study people, intuition and imagination are not official studies. Would appreciate brainliest!
The Doppler effect is the term that best describes the change in frequency of waves when there is motion between the source of the waves and the observer. The correct option among all the options that are given in the question is the first option or option "a". I hope the answer helps you.
Answer: 3.33 m/s
Explanation:
Assuming the questions is to convert 12 km/h to meter per second (m/s), let's begin:
In order to make the conversion, we have to know the following:
And:
Keeping this in mind, we can make the conversion:
Then:
Answer:
Daltons
Explanation:
The unit used to measure weighted average atomic mass is the Atomic Mass Unit (amu) which is also known as Daltons.
