Answer:the wave lengths are shorter and faster
Explanation:
Plato
Answer:
Time, t = 0.104 seconds
Explanation:
Frequency of the click of the Dolphin, f = 55.3 kHz
A dolphin sends out a series of clicks that are reflected back from the bottom of the ocean 80 m below, d = 80 m
The speed of sound in seawater is, v = 1530 m/s
Once the sound is send and reflects, the total distance covered by it is 2d such that,
So, the time elapses before the dolphin hears the echoes of the clicks is 0.104 seconds.
the answer is vertical because
<span>The correct answer for this question is that the passing of the moon directly between the earth and the sun is a solar eclipse. Solar eclipses cause the earth to temporarily become slightly darker, and can be observed by looking through specialist glasses so as not to damage the eyes.</span>