My Notes o Ask Your Teacher 9. O H1 points osColPhys201 6 24.1.WA.004 An enormou

Question

My Notes o Ask Your Teacher 9. O H1 points osColPhys201 6 24.1.WA.004 An enormous thunderstorm covers Dallas-Ft. Worth. Your best friend Clark is a storm chaser and heads to the center of the storm to take some readings while you stay dry at home. While Clark is at the center of the storm, he sees and hears lightning strike a tree that is 173 m from where he is standing. You are 124 km from the tree. How long does it take for the sound to reach Clark? Assume the speed of sound is 343 m/s. How long does it take for the light to reach you? Will your storm-chaser friend Clark hear the lightning or will you see the lightning first? O Clark hears it first. O You see it first. Additional Materials Reading Menovo

Explanation / Answer

formula related distance time and speed of sound is

t 1= d/v

= 173 m/343 m/s

=0.504 s

t 2= d/c

= 124000 m/3* 10^8 m/s

=4.133 * 10^-7 s

comparing above two times

you will see the lightning first

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