Physics

posted by Annie (Please Help)

A hiker sees a lightning flash, 13.0 s later he hears the sound of the thunder.

Recalling from his study of physics that the speed of sound in air is approximately 1/3 km/s he estimates that the distance to where the lightning flash occurred is approximately

a. 4.33 km
b. 9.33 km
c. 14.3 km
d. 44.3 km

  1. Henry

    d = Vt = 0.3333km/s * 13s = 4.33km.

Respond to this Question

First Name

Your Answer

Similar Questions

  1. Physics

    A hiker shouts toward a vertical cliff 675 m away. The echo is heard 4.00 s later. (a) What is the speed of sound of the hiker's voice in air?
  2. Math

    In a lightning storm, the number of seconds between the flash and the bang varies directly with the number of miles you are from the lightning. It takes 15 seconds for the thunder sound to reach you from lightning that is 3 miles away. …
  3. physics

    A hiker shouts toward a vertical cliff 660 m away. The echo is heard 4.00 s later. (a) What is the speed of sound of the hiker's voice in air?
  4. 1

    A student witnesses a flash of lightning and then t = 6.5 s later the student hears the associated clap of thunder. Sound travels at 343 m/s in the air. What distance from the student is the lightning strike, in meters?
  5. physics

    A student witnesses a flash of lightning and then t = 6.5 s later the student hears the associated clap of thunder. Sound travels at 343 m/s in the air. What distance from the student is the lightning strike, in meters?
  6. math

    During a severe thunderstorm, Tim saw a flash of lightning and then six seconds later heard a clap of thunder. The speed of sound is 1088 ft/sec. How far is Tim from the lightning?
  7. physics

    You can estimate your distance from a lightning storm by watching for a lightning flash and then counting in one-second intervals using the general rule that you are 1 km away for every 3 s you count. Explain why this rule works. Estimate …
  8. physics

    You can estimate your distance from a lightning storm by watching for a lightning flash and then counting in one-second intervals using the general rule that you are 1 km away for every 3 s you count. Explain why this rule works. Estimate …
  9. Physics

    Lightning strikes a hilltop that you can see, but do not know the distance to. If the thunder takes 10.52 seconds to reach you and the speed of sound in air is 340. m/s, how far away is the hilltop?
  10. Science

    The time interval between a lightning flash and the first sound of thunder was found to be 5 second.If the speed of sound in air is 330 ms-1,find the distance of the hash from the observer

More Similar Questions