Physics speed Question help? Pls help!?

Speed of Light : 300 000 000 m/s Speed of sound in Air: 343 m/s ------ 1) If the time difference between hearing a thunder and seeing a lightning 1s, approximately how far is the thunderstorm away from you? `````````` Pls help me answer this question and EXPLAIN it. I'm from Singapore so pls try to explain... show more Speed of Light : 300 000 000 m/s
Speed of sound in Air: 343 m/s
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1) If the time difference between hearing a thunder and seeing a lightning 1s, approximately how far is the thunderstorm away from you?
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Pls help me answer this question and EXPLAIN it. I'm from Singapore so pls try to explain it in a Singapore education method. Explain in a SIMPLER way cos im just a Sec 1.
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