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noname [10]
3 years ago
14

Derek is watching a thunderstorm. He hears the thunder 4.7 s after seeing a flash of lightning. How far away was the lightning?

Mathematics
1 answer:
statuscvo [17]3 years ago
4 0

Answer:

1.0014 Miles

Step-by-step explanation:

The light travels at 186,291 miles per second (~300,000 km/s), and speed of sound in dry air is equal to 0.21 - 0.22 miles per second (0.33-0.35 km/s), as it varies with the temperature. We can notice the lightning almost immediately even though the storm is far from us, but the thunder needs around 5 seconds to travel one mile and approximately 3 seconds to travel one kilometer. Thanks to this seven orders of magnitude difference in sound and light propagation, we can easily estimate the storm distance

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pochemuha
The answer to this is 20. You can find the length by using the formula l=a/w
4 0
4 years ago
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Answer:

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4 0
3 years ago
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Answer:

3 inches

Step-by-step explanation:

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5 0
2 years ago
A car travels 58.8 kilometers in 2.6 hours. What is the car's average speed?
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Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
( -20 , 14 ) and ( 30, 18)
OlgaM077 [116]

Answer:

2/25 if this is slope.

Step-by-step explanation:

so y^2 refers to the y coordinate of your second point and the same for y^1, but for the first point. Then you want to subtract those. In this one, it would be 18 - 14 = 4. Once you get that, do the same thing for the x coordinates. Ex: 30 - (-20) = 50 (something minus a negative is like addition). Then put your y answer over your x answer as a fraction and simplify. Ex: 4/50 -> 2/25. This is your answer.

Hope this makes since and helps!

7 0
3 years ago
Read 2 more answers
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