Well, I'll try to do the experiment by placing a stick on the ground and another on an elevated position, string a cable in between them, then turn on a big fan. I'll see if one stick falls down first or not. I'll post my results.
Thanks for the reply!
I just assumed that the "blowout angle" (the angle from vertical) that the cable makes in a windy environment would be the same throughout the entire length. This is because I imagined that the cable was like a series of pendulums (just imagine an invisible string...
Unequal force at uneven attachment heights??
Friends:
My boss and I have been debating this physics problem:
Imagine that you have a cable suspended in between two poles (Pole 1 and Pole 2). The attachment height at Pole 1 is greater than that at Pole 2. As for the orientation of the x...
Friends:
If you take a rope and fix the top end and allow the rope to swing, then it is just a pendulum and the period of swing is widely known (and on wikipedia) as approx. T = 2*pi*(L/g)^0.5 where L is the length of the pendulum and g is gravity.
My question is: What if I take both ends...
Friends:
I am wondering about heat dissipation when you have imaginary numbers.
Lets say a current I = (3 + 4j) Amps is going through an impedance Z = (2 + 3j) Ohms. What is the amount of heat dissipated by the impedance?
I think that you take the magnitude of the current, |I| = 5 Amps, and...
Friends:
I would like to verify my understanding of mutual induction.
Coil 1: n1 turns per unit length, radius is r1, has a current I1
Coil 2: n2 turns per unit length, radius is r2, has a current I2 (in the same direction as I1)
r1 > r2. Coil 2 is inserted inside Coil 1. What is the...
Friends:
Lets say you have a conductor that is made of two components - an inner core of steel and an outer layer of aluminum (ACSR). Is there mutual inductance between the steel and the aluminum? Every example of mutual inductance I have seen requires that an insulated wire be wrapped around...
Friends:
I was recently introduced to a [published] method of calculating the impedance of a metallic cylinder [applicable to both DC and AC] which I thought was interesting but counter-intuitive. This method is:
Lets say you have a metallic cylinder that is inhomogeneous. In other words...
I am referring to the tension between the two poles.
Does the tension in the line ever go to zero? Because when birds fly away, the line sort of bounces up and down. I am wondering: when the line bounces up, does the tension go to zero? I suppose an analogous situation (?) would be when you...
Friends:
I have been wondering how a conductor's tension is affected by birds landing on it and then flying away. By itself, the conductor has some tension obviously due to its weight. When a bird lands on the conductor, the tension increases. But what about when the bird flies away? By...
Friends:
Recently I got this problem: what sustained horizontal wind pressure/force is needed to make a pendulum swing up and stay at a certain angle?
To solve this problem, I imagined applying a horizontal force FH to the bob (of mass "m"). I learned that the angle that the pendulum makes...
Hello Friends. I have a question that may have to do with wind lift and other effects.
I have two wooden poles set into the ground. Both poles are upright and has a height of H feet. The horizontal separation of these poles is S feet. Let's say I attach a rope in between these poles so that...
Hello Friends.
I have a question for the following scenario:
There are two wooden poles, both set into the ground so that they are sticking straight up. The height of Pole One is H1 feet. The height of the Pole 2 is H2 feet. Supported in between these two poles is a wire. The ends of the...
Friends:
I have been thinking about this question for a while, so I hope you can help! Here it is:
Lets say you have two concentric, conducting cylinders.
The outer cylinder ("Cylinder 2") has the following properties: radius R2, carries a current of I2, relative magnetic permeability...