Answer:
The answer is option b.
Explanation:
Amplitude is the distance apart each wave is.
Answer:
40 (superscript) is the mass number aka atomic mass, and 19 (subscript) is the atomic number aka number of protons and electrons.
two hydrogen atoms and one oxygen atom. hope this helped.
Hypothesis is your opinion/ your thinking and yes, scientists have hypothesis before they do an experiment
Hope this helps!
