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Which diagram best represents the field around a positively charged particle?
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longitudinal wave, wave consisting of a periodic disturbance or vibration that takes place in the same direction as the advance of the wave. ... Sound moving through air also compresses and rarefies the gas in the direction of travel of the sound wave as they vibrate back and forth.
<u>FORMULA</u>
<h2>y = displacement of the point on the traveling sound wave
x = distance the point has traveled from the wave's source
y_0 = amplitude of the oscillations
\omega = angular frequency of the wave
t = time elapsed
c = speed of the wave
<u>Answer:</u>
<em>The length of the swimming course is 47.16 meters.</em>
<u>Explanation:</u>
It is given that the right triangle overlaps the lake and hypotenuse L runs through the length of the lake. Thus length of the lake will be the length of this hypotenuse.
The instructors have conducted measurements of the right triangle and has found the legs to be 25 and 40 meters. The sum of squares of base and height of a right triangle gives the value of its hypotenuse according to Pythagoras theorem.
Thus
b - base
h - height.