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ICE Princess25 [194]
3 years ago
13

You see a lightning bolt flash in the distant sky. You hear the corresponding thunder 6.8 seconds later. If the temperature is 2

8º C, how far away in, kilometers, from you did the lightning strike?
Physics
1 answer:
Anna35 [415]3 years ago
7 0

Answer:

Distance = 2.4\ km

Explanation:

Given

Time (t) = 6.8s

Temperature = 28C

Required

Determine the distance at which the lighting struck

First, we need to determine the speed at which the lighting struck because the peed of sound varies with temperature.

At about 28C, the speed of sound is 346m/s

So, we have the following:

Speed = 346m/s

Time = 6.8s

Distance is calculated as thus:

Distance = Speed * Time

Distance = 346m/s * 6.8s

Distance = 2352.8

Divide by 1000 to get distance equivalent in kilometers

Distance = \frac{2352.8km}{1000}

Distance = 2.3528km

Distance = 2.4\ km ---- Approximated

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The tallest Ferris wheel in the world is located in Singapore. Standing 42 stories high and holding as many as 780 passengers, t
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Answer:

The speed of the riders on the Singapore Flyer is approximately 0.262 m/s

Explanation:

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The angular velocity of the Ferris wheel, ω = 2·π/T

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