Question on the speed of light.

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SUMMARY

The discussion revolves around calculating the distance from an observer to a thunderstorm based on the time delay between seeing lightning and hearing thunder. The observer noted a 12-second delay and used the speed of sound in air at 20 degrees Celsius, which is approximately 343 meters per second. The calculated distance is approximately 4,123 meters, confirming that distance equals speed multiplied by time. The discussion highlights the importance of understanding the relationship between sound speed and air temperature for accurate calculations.

PREREQUISITES
  • Understanding of the speed of sound in air, particularly at different temperatures.
  • Basic knowledge of distance calculation using the formula: Distance = Speed × Time.
  • Familiarity with the concept of instantaneous light travel compared to sound.
  • Ability to interpret and apply physics equations in real-world scenarios.
NEXT STEPS
  • Research the speed of sound in various temperatures to understand its variability.
  • Learn how to apply the formula for distance calculation in different contexts.
  • Explore the physics of light and sound propagation to grasp their differences.
  • Investigate resources like HyperPhysics for deeper insights into sound and light phenomena.
USEFUL FOR

Students studying physics, educators teaching sound and light concepts, and anyone interested in practical applications of speed and distance calculations.

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Homework Statement


An observer sees a lightning flash from a distant thunderstorm and 12 seconds later hears the second. If the temperature of the air is 20 degress celsius, how far from the storm is the observer? (assume that light travels instantaneously.




Homework Equations


None I know of.


The Attempt at a Solution



No clue. I've missed 4 days of school last week due to some sort of rash that was said to be contagious. I am very exhausted and I have no clue what I have to do. Can someone please do the problem and guide me by explaining how they solved it?

Thanks.
 
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did some math and got 4083 meters.
 
so it is 4,123?
 

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