All Solutions

Exercise 1

Step 1

1 of 2

Take the ratio of the distance and the speed of sound

$$
t=dfrac{d}{v}=dfrac{170m}{343;m/s}=0.50;s
$$

Result

2 of 2

$$
0.50;s
$$

Exercise 2

Step 1

1 of 2

The sound travels to the cliff then goes back. This is twice the distance to the clift.

$2d=vt$

$$
d=dfrac{1}{2}vt=dfrac{1}{2}(343m/s)(1.75)=300;m=0.300 km
$$

Result

2 of 2

$$
0.300km
$$

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