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Ivahew [28]
3 years ago
5

After setting up stereo speakers in your schools music room, you notice that in certain areas of the room, the sound from the sp

eakers is very loud. In other areas, the sound is very soft. Using the concept of interference, explain why the sound levels in the music room vary.
Physics
1 answer:
Keith_Richards [23]3 years ago
3 0

Answer:Explained Below

Explanation:

Loud sound is because of constructive interference of sound waves and soft sound is due to destructive interference of sound waves.

Constructive interference is when two waves of same sign amplitude combines to form a louder sound and opposite sign for destructive interference.

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Figure 1.18 (Chapter 1) shows the Hoover Dam Bridge over
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Answer: 7.436 s

Explanation:

This situation is related to vertical motion, specifically free fall and can be modelled by the following equation:

y=y_{o}+V_{o} t+\frac{gt^{2}}{2}  

Where:

y= 0m is the final height of the object (when it makes splash)

y_{o}=271 m  is the initial height of the object

V_{o}=0 m/s  is the initial velocity of the object (it was dropped)

g=-9.8m/s^{2}  is the acceleration due gravity (directed downwards)

t is the time since the objecct is dropped until it makes splash

0=y_{o}+0+\frac{gt^{2}}{2}  

Clearing t:

t=\sqrt{\frac{-2y_{o}}{g}}  

t=\sqrt{\frac{-2(271 m)}{-9.8m/s^{2}}}  

Finally:

t=7.436 s  

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4 years ago
" A bowl of soup at 200Á F. is placed in a room of constant temperature of 60Á F. The
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<span>T(t)=60+140<span>e<span>−0.075t</span></span></span> <span>T(12)=60+140<span>e<span>−0.075∗12</span></span></span> <span>T(12)=60+140<span>e<span>−0.9</span></span></span> <span><span>T(12)=60+140(0.4065696597)
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in addition to studies of the body system of corals what studies in earth science might increased scientists understanding of an
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