Answer:
The wavelength of frequency of the sound are closer to each other
Or
The frequency of the sound increases as it moves towards you
Alpha decay is your answer. This picture should explain it to some degree.
Answer:
the googles are 4.33mm from the edge
Explanation:
In this question, we are asked to calculate the distance of a set of googles from the edge of a pool.
We proceed as follows;
depth of pool , d = 3.1mm
Now, let i be the angle of incidence
i = arctan(1.8/1.2)
i = 56.31 degree
Using snell's law ,
n1 * sin(i) = n2 * sin(r)
1 * sin(56.3) = 1.33 * sin(r)
r = 38.72 degrees
Now,
distance of googles = 1.8+ d*tan(r)
distance of googles = 1.8+ 3.1 * tan(38.72)
distance of googles = 4.3 mm
They first change into chemical, then to radiant, then finally to thermal energy.
The answer is Digital Signals. Electronic signals that pulse current in a series of ones and zeros are known as Digital Signals. <span>A </span>digital signal<span> refers to an electrical </span>signal<span> that is converted into a pattern of bits. </span> Digital signals<span> can be sent for long distances and suffer less interference than analog </span>signals<span>.</span>
