It's D reflection. I found the answer on quizlet.
https://quizlet.com/127051840/chapter-12-sound-flash-cards/
That is the link to the quizlet.
Wavelength x Frequency = Speed
So, 5.9 x 10^-7 x F = 3 x 10^8
Rearranging the equation, we get:
F = (3 x 10^8)/(5.9 x 10^-7) = 5.08 x 10^14 Hz
Hope I helped!! xx
Answer:
positron
Explanation:
A positron is a particle produced when a proton is transformed into a neutron. Anti neutrinos are ejected from the nucleus to balance spins.
Positron emission increases the Neutron/Proton ratio. When a nuclide undergoes positron emission, the atomic number of the daughter nucleus is one unit less than that of the parent nucleus hence it is found one place before its parent in the periodic table.
Well since i need points I am going to say read the text
