it is under the topic of WAVE SPEED.
thunder and lightening occur at the same time,lightening strikes 1Km away. If you see the flash immediately, how long do you have to wait before you hear the thunder? ( take the speed of sound as 333m/s).
i will be grateful if you show the working (expanations) if you can.
thanks
2007-02-20 07:08:00 · 3 answers · asked by b-ball rooky 2 in Science & Mathematics ➔ Physics
You simply have to figure how long it takes for the sound wave to travel the distance of 1Km. Speed = Distance/Time so Time = Distance/Speed.
2007-02-20 07:13:12 · answer #1 · answered by aberrantgeek 3 · 2⤊ 0⤋
you------------Lighting
1km
1000m
wave speed = 333m/s
distance = 1000m
time= ?
wave speed = distance / time
333m/s= 1000m / time
1000m / 333m/s = 3.003 seconds
2007-02-20 07:14:41 · answer #2 · answered by Stick 4 · 1⤊ 0⤋
1.0 km = 1,000 m
sound speed = 333 m/s
1000 ÷ 333 = 3.003 seconds. .... 3.003 seconds after the flash you get the 1st sound of thunder.
The rolling thunder sounds are due to echoes in the clouds.
2007-02-20 08:29:25 · answer #3 · answered by Norrie 7 · 1⤊ 0⤋