If two waves with equal amplitudes and wavelengths travel through a medium in such a way that a particular particle of the medium is at the crest of one wave and at the trough of the other wave at the same time, what will happen to that particle?
a. the particle will cause beats as a result of the wave combination.
b. the particle will vibrate with double amplitude due to resonance.
c. the particle will move halfway to the crest due to reinforcement.
d. the particle will remain stationary due to interference.

The answer is D “The particle will remain stationary due to interference”. When this happens, the node, the point in the middle where the lines meet) will be the scenario where the particle will set. After that, it won’t move because the waves interfere destructively so there is no chance of movement at the node.

to me i think class room sitting education is better. i do online school and i have not learned a think haha. when i sit in the classroom i just sit there and kind of pay attention but still i get so far ahead in the class when im doing online i have nothing else better to do but play video games and i sit in school and learn and have friends and just actually learn. when i'm doing online i sit here listing to music and get on and and look up the answers i guess that is my fault for being a cheater. but to be honest i think sitting in the classroom is better.