You'll get destructive interference if both waves are the same frequency but the peaks of one wave overlap the troughs of the other wave.
That can only happen if one wave has to travel (1/2 wavelength) farther than the other one to reach your ears. So we want to find the lowest frequency for which 52 cm is 1/2 of a wavelength ... the wavelength is 104 cm.
Frequency = (speed) / (wavelength)
Frequency = (344 m/s) / (104 cm)
Frequency = (344 m/s) / (1.04 meter)
Frequency = (344 / 1.04) per second
Frequency = 330.8 Hz .
Answer:
1
Explanation:
Its 1 since the shape of it is more downwards which results the reflection going downwards.
The book Two New Sciences is the book that would later influence Sir Isaac Newton
You have learned your lesson well, Suhay. Your statement is correct.
The light rays from the fish BEND when they flow out of the water into the air. But our primitive brain still believes that the light rays flow STRAIGHT from the fish. The result is that the fish does not APPEAR to be at that place where it really is.
Maybe but not necessarily. It could possibly bring it to a 90 or higher but it would also even out with the rest of your grades. Add them all up and divide by how many there are to determine what your average would be. If you have a school tool or schoology or something like that online, you can easily see your grades to do the math.
I hope this helped :)
