A) 15 N
Don’t click the link it will give you viruses!
To cold which it throws off the equilibrium of the other things and sticks to it longer
If both waves have the same wavelength, then the amplitude of
their sum could be anything between 1 cm and 9 cm, depending
on the phase angle between them.
If the waves have different wavelengths, then the resultant is a beat
with an amplitude of 9 cm.
Answer:
The answer is B) Double slit
It might be radiation and reflection but I’m not sure
