What is the answer to the hanging cable problem?
The cable therefore is hanging directly downward! The cable has to be doubled back upon itself, and the two poles must be coincident and 0 m apart! This part is actually a trick question: the two poles are a distance of 0 apart. No physics was required to solve this one, just logical thinking!
How far apart are poles cables 80 m long 50 m 50 m 10 m?
The distance between the poles which is connected by cable of 80m long to two poles ,and 50 height each pole and distance between cable to surface is 10m is given as follows. Consider the attached figure, while going through the following steps. Hence the distance between the poles is 2 × 23 = 46m.
What is the length between two pole?
Thus the distance between the poles is equal to 46 m.
Is a hanging cable a parabola?
It is often said that Galileo thought the curve of a hanging chain was parabolic. In his Two New Sciences (1638), Galileo says that a hanging cord is an approximate parabola, and he correctly observes that this approximation improves as the curvature gets smaller and is almost exact when the elevation is less than 45°.
What is the distance between two 50 meters long poles if a cable of 80 meters is hanging from the top of the two poles and the center of the cable is 20 meters above the ground?
Hence, distance between two poles is 46m. The shape of the cable is catenary .
What is the function of earth wire?
In every circuit, one wire is connected to the earth, the main function of the earth wire is to protect the sudden damage of the electrical appliances or the electrical instruments due to the sudden voltage increase or the leakage of the current.
What is the catenary equation?
The catenary is described by the equation: y=eax+e−ax2a=coshaxa. where a is a constant. The lowest point of the catenary is at (0,1a).
How many poles can be erected over a length of 50 m if the distance between two consecutive poles is 2 m?
There are 51 poles can be erected over a length of 50 m.
What is the maximum distance between two RCC columns?
The normal spacing among two columns is 5 meter or 16.40 feet. The maximum spacing among two columns is 7.5 meter or 24 feet. (Since 1 meter is similar to 3.28084 feet). The minimum spacing among two columns is 2 to 3 meter or 5 to 7 feet.
What is the shape of a hanging cable?
Catenary
Catenary, in mathematics, a curve that describes the shape of a flexible hanging chain or cable—the name derives from the Latin catenaria (“chain”). Any freely hanging cable or string assumes this shape, also called a chainette, if the body is of uniform mass per unit of length and is acted upon solely by gravity.
What is a parabolic curve?
In mathematics, a parabola is a plane curve which is mirror-symmetrical and is approximately U-shaped. The parabola is the locus of points in that plane that are equidistant from both the directrix and the focus.
What does loose cable between house and utility pole mean?
Loose cable between house and utility pole – who s… Loose cable between house and utility pole – who should fix? After some recent stormy weather, the end of the overhead cable attached to my house (from a nearby utility pole) is hanging loose with wires and connectors exposed.
How are cables attached to a suspended ceiling?
Attaching the cables by suitable clips or cable ties to ceiling support rods. Where suspended ceilings contain wiring systems in escape routes, the cables shall be supported such that they will not be liable to premature collapse in the event of a fire (Regulation 521.11
How are cable wires removed from your home?
I was told that wires aren’t removed from homes, the service is turned off from the office, unless requested by the customer at the time they request the service be ended. The new cable company installs their own wires so now we have homes with multiple wires going to them which is not only an eyesore, but also a hazard if they come loose.
Why are there so many cable lines in my house?
The new cable company installs their own wires so now we have homes with multiple wires going to them which is not only an eyesore, but also a hazard if they come loose. The way people are constantly switching cable companies this is becoming a real problem.
How tall is the hanging cable on Amazon?
Check out all of SourceForge’s improvements. | Follow Slashdot on LinkedIn An anonymous reader shares a problem that Amazon asks in its interviews: A cable of 80 meters is hanging from the top of two poles that are both 50 meters off the ground.
How big is a cable hanging from a pole?
An anonymous reader shares a problem that Amazon asks in its interviews: A cable of 80 meters is hanging from the top of two poles that are both 50 meters off the ground. What is the distance between the two poles (to one decimal point) if the center cable is (a) 20 meters off the ground and (b) 10 meters off the ground?
Loose cable between house and utility pole – who s… Loose cable between house and utility pole – who should fix? After some recent stormy weather, the end of the overhead cable attached to my house (from a nearby utility pole) is hanging loose with wires and connectors exposed.
Can you solve the hanging cable problem, used as an..?
If you know the catenary equations and whatnot, you look at the second and immediately see the obvious problem because you’ve got internal context with which to frame the question and so immediately process the framing. If you don’t, you notice they’re both similar problems you can’t answer.