- #1
ramollari
- 437
- 1
A stone is thrown into a well and the sound is heard after 3s. How deep is the well?
DaveC426913 said:Dex, you silly!
This is an assignment about acceleration, not about the speed of sound!
dextercioby said:
Coul you explain both of your sentences?
Daniel.
DaveC426913 said:I believe you missed the forest for the trees.
Your response seems to focus on the amount of time it takes the sound to reach your ear from the bottom of the well.
I believe the question is not about the speed of sound, it is about acceleration under gravity. The only relevant time delay concerns how fast the rock falls due to gravity. One should assume the delay due to propogation of sound is not a factor.
Maybe. I could be wrong.
It's grade K-12 homework.
,not on the speed of sound.It never mentions the speed of sound...dextercioby said:Write down the times the stone takes to hit the water and the sound takes to reach your ear.You'll find your answer in no time...
DaveC426913 said:You don't think the grade K-12 homework problem is more simply stated as:
"How far will an object fall in 3 seconds"
?
The depth of a well can vary greatly depending on its purpose and location. On average, a residential water well can range from 100-500 feet deep, while oil and gas wells can be thousands of feet deep.
The depth of a well is primarily determined by the depth of the aquifer, or underground layer of water, that is being tapped. Other factors such as the type of well, drilling technology, and local geology can also play a role in determining the depth.
Technically, there is no limit to how deep a well can be drilled. However, drilling beyond a certain depth becomes increasingly difficult and expensive. The deepest well in the world, the Z-44 Chayvo Well in Russia, is over 40,000 feet deep.
The depth necessary to access clean water can vary depending on the location and quality of the groundwater source. In some cases, a shallow well of just a few feet can provide clean water, while in other areas a well may need to be several hundred feet deep to reach safe and clean water sources.
Yes, the depth of a well can change over time due to natural factors such as erosion or human activities like pumping. In some cases, wells may need to be deepened or re-drilled to maintain access to adequate water sources.