you see lightning and then count 4 seconds till you hear the thunder. From this you conclude that the lightning strike occurred_______
a. 1400m away
b. 700m away
c. none of the above
Can you please show me how to figure out how to get the answer?
To determine the distance of the lightning strike, you can use the speed of sound as a reference. Sound travels at approximately 343 meters per second (in dry air at 20°C). Since you heard the thunder after 4 seconds, we can calculate the distance using the formula:
Distance = Speed × Time
Therefore, the formula becomes:
Distance = 343 m/s × 4 s
Calculating this equation, we find:
Distance = 1372 meters (or 1.372 kilometers)
So, the lightning strike occurred approximately 1372 meters away. Comparing this value with the given options, we can conclude that the answer is:
a) 1400m away.
It should be noted that this calculation assumes that the temperature, humidity level, and other atmospheric conditions are average and do not significantly affect the speed of sound.
To figure out the distance of the lightning strike using the time it takes for the sound of thunder to reach you after seeing the lightning, you can follow these steps:
1. Convert the time from seconds to kilometers: 1 second is approximately equal to 343 meters (the speed of sound in dry air at 20 degrees Celsius).
2. Multiply the time in seconds by the speed of sound to get the distance in meters. In this case, 4 seconds multiplied by 343 meters/second equals 1372 meters.
Therefore, the distance of the lightning strike is approximately 1372 meters away. None of the options provided fit this value exactly. So the correct answer would be: c. none of the above.