Answer:
As you learned in Wave Motion, all waves have amplitude, wavelength, velocity and frequency.hope that helps
Using the formula 
for momentum your answer would come out to be: 
I think it is b cause I don’t think you do that
Chemical reactions happen when TWO or more molecules interact
Answer:
what do u need help with
Explanation:
Pа: 5. Mass of the earth is 6x10-kg and its radius is 6400km. What is the mass of a man weighting 977N? (99.99kg) ma. Orth be.
