Astudent witnesses a flash of lightning and then t=2.5s later the student hears assiciated clap of thunder. ( show work) (part a) sound travels at 343 m? s in the air, what distance from the student is the lightning strikes, in meters? (part b) light travels at 3.0x108 m/s in the air. how long, t1, in seconds did it take the light to reach the student's eyes after the flash?

857.5 m

2.8583×10⁻⁶ seconds

Explanation:

Time taken by the sound of the thunder to reach the student = 2.5 s

Speed of sound in air is 343 m/s

Speed of light is 3×10⁸ m/s

Distance travelled by the sound = Time taken by the sound × Speed of sound in air

⇒Distance travelled by the sound = 2.5×343 = 857.5 m

⇒Distance travelled by the sound = 857.5 m

Time taken by light = Distance the light travelled / Speed of light

Time taken by light = 2.8583×10⁻⁶ seconds

answer: option c.

explanation:

powerful computers now, not then