Q:A 0.500 g wire is stretched between two points 95.0 cm apart. If the tension in the wire is 600 N, find the wire's first, second, and third harmonics.______Hz (1st)______Hz (2nd)______Hz (3rd)

Kia ora In order to answer this question, we first need to ascertain the speed of a wave in this wire. The speed of a wave on a wire depends upon the tension 'T' and the linear density (mass per unit length) 'μ' of the wire. v=√(T/μ) T=600 N The linear density of your wire is 5.00E-4 kg/0.95=5.263E-4 kg/m. So for this wire, v=√(600/5.263E-4) =1068 m/s Now we have the speed, we need to find the wavelengths that correspond to the harmonics we are interested in. The wire is fixed at both ends. Nodes occur at fixed ends. Therefore the first harmonic will occur when there is a node at each end and the longest possible wavelength that satisfies this condition is λ=2L (you get half a wavelength on the wire). So λ=2*0.95=λ=1.90m. If v=1068m/s and λ=1.90 then by the wave equation v=fλ f=v/λ=1068/1.90=562.1 Hz. So that is the first harmonic. The second harmonic has twice the frequency of the first; the third harmonic has three times the frequency of the first. The second harmonic will therefore occur at 562.1*2=1124 Hz and the third at 562.1*3=1686 Hz. Because your data was given to 3sf you need to round your answer to 3sf: 1st harmonic: 562 Hz 2nd harmonic: 1120 Hz 3rd harmonic: 1680 Hz

Q:I have installed a new wiring harness on my trailer, and two new LED trailer lights. The tail lights work, both turn signals work, but for some reason, I do not have a brake light on the right side. Both lights are grounded to their own post, and I do have a good ground on the coupler of the trailer. If a turn signal and brake light in a 4 wire system are using the same wire (green in this case)- how can one work, while the other is not? Any good ideas? I really appreciate the help.

assuming it was working ok before....... funky symptoms like that (where you can't imagine the circuit that would make 'em behave like that) almost always turn out to be a weak ground -- like the ground is ok for turn signals because only one side is on at a time, but when you demand enough current to light up both sides, it just ain't happening. you can rule out a ground issue between the vehicle and trailer by hooking a jumper cable between the frames. if that don't produce a change, then run an oversized wire from the fixture direct to the connector.

Q:A street lamp weighs 200 N. It is supported by two wires that form an angle of 130° with each other. The tensions in the wires are equal.What is the tension in each wire supporting the street lamp?If the angle between the wires supporting the street lamp is reduced to 100°, what is the tension in each wire?

Problem 1: If the tension in the two wires are equal, the angle they make with the horizontal must also be equal. Always remember that a horizontal line is a straight angle; hence, it has a measurement of 180°. Let's look for the angle the wires make with the horizontal. 130 + x + x = 180 130 + 2x = 180 2x = 180 - 130 2x = 50 (Divide both sides by 2) x = 25° Each wire makes a 25° angle with the horizontal. We can now find the tension. The mass must be divided by 2. Using trigonometry, let's find the tension force. The divided weight of the lamp shall be the opposite side, and the tension force shall be the hypotenuse. sin 25° = (200 / 2) / Ftens Ftens = 100 / sin 25° Ftens = 236.62 N (Answer) The tension is 236.62 N in each wire. Problem 2: We use the same approach. 100 + x + x = 180 100 + 2x = 180 2x = 180 - 100 2x = 80 (Divide both sides by 2) x = 40° Each wire makes a 40° angle with the horizontal. Calculate the tension force. sin 40° = (200 / 2) / Ftens Ftens = 100 / sin 40° Ftens = 155.57 N (Answer) The tension is 155.57 N in each wire. Hope this helps!

Q:Can I use 12-2 gauge wire on a 10 amp breaker to wire my light switches,and can I use 10 gauge wire on a 10 amp breaker? For a light fixture

YES ... always use 12gauge with a ground ; 10ga or 8ga is for 220volts .... you should use a 20amp breaker for light switches and a 30amp breaker for the wall plugs ... so as you know [[ to help you understand more about electrics --- the ele

Q:the wires are all cut off. which 2 do i connect and which is which and what is what?

i have a 1989 ford escort the wiring for all is the same red is hot black is ground maybe with a white stripe

Q:Lime Wire is a software that lets you download songs.

Lime Wire as a program isn't bad for your computer. When you leave it running - which you're encouraged to do - it slows down the puter considerably. Also, a lot of the files you can download from Lime Wire are full of viruses. I got two Trojans when I downloaded a movie and had to reformat to get rid of them. This happened even though I let my antivirus prog check the file before I opened it. Needless to say, I don't use Lime Wire anymore.

Q:Can you swap out a 1984 Porsche 944 wiring harness with a different car's wiring harness? If which car. Thank you.

You can order a new 944 wiring harness, but it is a lot of work. Much easier is to just get a good manual with a wiring diagram, and replace only the damaged wires, splicing at little as possible, as you go. I assume you just have some heat cracked wires, unless you had a fire or something? You can't take the harness from another car because all the connectors are going to be the wrong type, gender, or location. Especially things like the brainbox harness plug, etc.

Q:Electron flow in a conducting wire.?I have some confusion regarding the flow of electrons in a wire when voltage is applied across it. Intuitively, i see that when i apply voltage across the ends of the wire say by a battery. The voltage pushes the electrons in the wire. As, a result the electrons flow in straight direction rather than going zig-zag. Some of the electrons reach the positive terminal of the battery, now my query is what happens when the electrons reach the positive terminal.Do they loose all their energy? Also, how is there a constant flow of electrons in the wire because since electrons are flowing constantly from the negative to the positive, is there no instance all the free electrons in the wire have reached the positive terminal? Basically what i mean to say is do the free electrons ever gets extinct? I am sorry if my question sounds stupid but can anyone please explain me a little bit in a conceptual manner?

Well, the wire is connected to a voltage source. When they leave the positive terminal, they go through the wire, then get to the negative terminal. They then flow through the voltage source and back into the wire.

Q:I've been meaning to find floral wire for a DIY project I'm going to attempt. Does anyone know where to buy floral wire? I'm not sure if Michael's sells it. Please let me know from personal experiences.

Where To Buy Floral Wire

Q:Live wire- bring current to appliancesNeutral wire- returns the current from the applianceMy question is, if we are using AC current, then in the next half cycle, the live wire will return the current from the appliance and the neutral wire will bring current to appliances. Am I right? If I’m right, then both wires have the same function why give them different names? Really appreciate your help.

The live wire pushes the load (or the live wire connects the source to your load) and neutral wire goes from the load to ground (or back to source). So do not think about the alternating nature of AC but how the wires are connected and which one is pushing the load. Another way to think about it is the power flows from the generator to your house, through your panel, into your appliances then back. If you touch the live wire then electricity can flow through you to ground (bypassing the load). But, if you were to grab the neutral wire you will not be shocked because the current takes the path of least resistance, which is through the wire to ground and not through you. So, although the neutral wire can have the same power flow as the live wire you will not get shocked because you are on the other side of the load. Hope that helps you.