Concept explainers
The duration after which `the sound will reach the ear.
Answer to Problem 12STP
Thetime taken is,
Explanation of Solution
Given:
The speed of sound in iron is 5100 m/s and the distance of the sound travelled is 510 m.
Formula used:
The expression for time, speed and distance is,
Here, v is the speed of sound, d is the distance travelled by the sound and t is the time taken.
Since for an echo to be recorded it has to travel towards the object and reflect back to source and is given as d =2× d.
Calculation:
Substituting 5100 m/s second in v and 2× 510 m in d in equation (1),
Conclusion:
Hence, the time taken is,
Chapter 10 Solutions
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
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