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Llana [10]
3 years ago
7

We can block light by placing obstacles in its path, but it’s much more difficult to block sound. Why?

Physics
2 answers:
olganol [36]3 years ago
8 0
It's harder to block sound because sound waves and transverse waves, causing the sound to bounce off objects. This isn't the same with light. Hope that helps. 
rjkz [21]3 years ago
5 0
All we have to do is focus on what you want to hear and you can tell your mind to block everything out  and its very easy to block light than noise all you have to do is focus
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The average speed in m/s of a person that jogs eight complete laps around a 400m track in a total time of 15.1 min is 0.44m/s.

<h3>How to calculate average speed?</h3>

Average speed of a moving body can be calculated by dividing the distance moved by the time taken.

Average speed = Distance ÷ time

According to this question, a person jogs eight complete laps around a 400m track in a total time of 15.1 min. The average speed is calculated as follows:

15.1 minutes in seconds is as follows = 906 seconds

Average speed = 400m ÷ 906s

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Therefore, the average speed in m/s of a person that jogs eight complete laps around a 400m track in a total time of 15.1 min is 0.44m/s.

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