**Exploring the Science of Siphoning Water Over a Fence**You and a friend plan to throw one end of a hose over a tall fence to siphon water from your side to the other side. Your friend says it doesn’t matter how high the fence is, it will always work as long as your end of the hose is higher than the other side. However, you remind him that isn’t actually true. What is the potential problem and about how high can the fence be (in meters) before it becomes an issue?---### Understanding the PhysicsSiphoning relies on gravity and atmospheric pressure. As long as the source end of the hose is higher than the outlet, water can flow. However, there’s a limit to how high you can siphon water due to atmospheric pressure. Once the height from the source to the highest point in the hose is too great, the siphon will break.### ConclusionA typical atmospheric pressure can support a siphon of roughly 10.3 meters at sea level because of the physical limits of air pressure to push water up. Beyond this height, a siphon will not function effectively. It’s crucial to consider these physical boundaries when attempting to siphon over any obstacle such as a fence.

There is a limit to the height of the fence before it becomes problematic for water to be siphoned from one side to the other, which presents a possible difficulty in this scenario.The pressure produced by the weight of the water column in the hose grows with height; hence, the height of the fence becomes problematic. This indicates that there has come a point at which the water cannot be siphoned over the top of the barrier due to excessive pressure.We must take into account the usual atmospheric pressure at sea level, which is approximately 101.3 kilopascals (kPa), in order to estimate the maximum height of the barrier. Air pressure drops with increasing height.We must take into account the link between height and pressure in order to estimate the height at which the fence starts to cause problems. The pressure in a fluid column is directly proportional to the column's height at a given depth. The equation:P = ρgh,where,g is the acceleration caused by gravity.h is the height of the column.ρ is the fluid density, andP is the pressure that describes this connection.Assume that for siphoning to be successful, the pressure at the top of the fence cannot fall below 20 kPa. Using these values as input into the formula:This computation indicates that the fence may be raised to a height of around 2.04 meters before hose siphoning becomes problematic.

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You and a friend plan to throw one end of a hose over a tall fence to siphon water from your side to the other side. Your friend says it doesn't matter how high the fence is, it will always work as long as your end of the hose is higher than the other side. However, you remind him that isn't actually true. What is the potential problem and about how high can the fence be (in meters) before it becomes an issue?

You and a friend plan to throw one end of a hose over a tall fence to siphon water from your side to the other side. Your friend says it doesn't matter how high the fence is, it will always work as long as your end of the hose is higher than the other side. However, you remind him that isn't actually true. What is the potential problem and about how high can the fence be (in meters) before it becomes an issue?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Section: Chapter Questions

Problem 1.1MA

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Applied Fluid Mechanics

A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.

Question

**Exploring the Science of Siphoning Water Over a Fence**

You and a friend plan to throw one end of a hose over a tall fence to siphon water from your side to the other side. Your friend says it doesn’t matter how high the fence is, it will always work as long as your end of the hose is higher than the other side. However, you remind him that isn’t actually true. What is the potential problem and about how high can the fence be (in meters) before it becomes an issue?

---

### Understanding the Physics

Siphoning relies on gravity and atmospheric pressure. As long as the source end of the hose is higher than the outlet, water can flow. However, there’s a limit to how high you can siphon water due to atmospheric pressure. Once the height from the source to the highest point in the hose is too great, the siphon will break.

### Conclusion

A typical atmospheric pressure can support a siphon of roughly 10.3 meters at sea level because of the physical limits of air pressure to push water up. Beyond this height, a siphon will not function effectively. It’s crucial to consider these physical boundaries when attempting to siphon over any obstacle such as a fence.

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