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yanalaym [24]
3 years ago
9

Can some help me pliz ​

Physics
1 answer:
muminat3 years ago
3 0

1).  a

2).  g

3).  b

4).  h

5).  e

6).  c

7).  d

8).  f

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You yell into a canyon. You hear the echo in 3 seconds. How long did the sound of your voice travel before bouncing off a cliff?
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Answer:

The sound travelled 516 meters before bouncing off a cliff.

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2\cdot h = v\cdot t (1)

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h - Height, measured in meters.

v - Velocity of sound, measured in meters per second.

t - Time, measured in seconds.

If we know that  v = 344\,\frac{m}{s} and t = 3\,s, then the height of the canyon is:

h = \frac{v\cdot t}{2}

h = \frac{\left(344\,\frac{m}{s} \right)\cdot (3\,s)}{2}

h = 516\,m

The sound travelled 516 meters before bouncing off a cliff.

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2 years ago
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