Please answer the following two questions! If you observe thunder and lightning,

Question

Please answer the following two questions!

If you observe thunder and lightning, you can tell (with pretty good accuracy) how far away the storm is. Do you need to know the speed of sound, of light, or of both? How would you approximately figure out the distance? What measurement would you make to do this? Laser beams are made of light. In science fiction movies, laser beams are often shown as bright lines shooting out of a laser gun on a spaceship. Briefly state why this is scientifically incorrect.

Explanation / Answer

1) We can tell the distance by just knowing the speed of sound. Start the timer when you see the lightning and stop it the moment you hear the thunder sound corresponding to that. Now distance can be found as product of time you measured and the speed of sound.

2) Laser guns are incorrect due to the following

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