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 a 200 amp main breaker just below my meter, which is mounted on a pole. The neutral wire coming in is run to ground. From this box, I've run 2 cables (1/0) ~80 ft to another box with a 150 amp main breaker. This box is grounded to an 8ft ground rod. I am wondering whether this setup (no neutral wire from meter pole to building) would potentially allow a ground fault without tripping the 200 amp main. For example, if somebody dug into the line with a backhoe? Oh yeah, the cable is in a 3ft deep trench that will be covered. I have an abridged version of the NEC, but I haven't found this particular topic covered. Thanks.

Good job, Amy. I'll bet you didn't post a question here similar to: Waz the difference between nuetral and ground. I nned to now this for my electian exam tomorow.

Q:Need wiring diagram for ford F250 2004 disel

Radio 12v lt. green/purple + radio harness Radio Ground black and black/lt. green - radio harness Radio Ignition pink/black or lt. green/yellow + radio harness Radio Illumination lt. blue/red (dimmer) + radio harness Factory Amp Turn-on dk. green/purple + radio harness Notes: This is the subwoofer amplifier turn on lead. The subwoofer and amp are in the driver side rear corner of the cabin. The subwoofer speaker wires are brown/orange (+), and red/black (-) at the radio harness. Power Antenna N/A LF Speaker +/- orange/lt. grn - lt. blue/wht +,- radio harness RF Speaker +/- white/lt. grn - dk. green/org +,- radio harness LR Speaker +/- gray/lt. blue - tan/yellow +,- radio harness RR Speaker +/- orange/red - brown/pink +,- radio harness Immobilizer Bypass Module: Required: Yes Type: SecuriLock Part #: 555U

Q:Im replacing the factory rear speakers in my car but cant figure on which wires are positive and which are negative. I went on a site for impalas but the color wires they have listed are not the same color wires in my car your help will be appreciated.

Left Rear Speaker Positive Wire (+): Brown Left Rear Speaker Negative Wire (-): Yellow Right Rear Speaker Positive Wire (+): Dark Blue Right Rear Speaker Negative Wire (-): Light Blue

Q:Need wiring diagram or manual

Here okorder /

Q:what are the ground and power wires for a walmart replacement cigarette lighter?

The wire that leads to the center terminal is the power wire. The wire that is attached to the case or side of the unit is the ground side.

Q:I always see birds hang on the wires but never get fried how do they do. It?

Because electricity won't pass through them unless they're grounded to something else. A human can do the same to a live wire as long as they aren't connected to something else the electricity can travel to.

Q:What are those strange ball-like things that are on some electric/telephone wires? I think they're on electric wires. I've always wondered.

If they're what I think you're talking about, they are usually orange or red and are used to show aircraft pilots that there is a wire, ... creating a dangerous condition. They usually put these on electrical wires where crop duster airplanes dust fields, or on wires at the end of airport runways. Otherwise the wires would be invisible to the pilot and could cause a crash if hit.

Q:putting new plug on wire. which wire connectswhere?

The wide prong is neutral and should connect to the white wire. The narrow plug is hot and should connect to the black wire. If the wires are not colored black and white and are instead in a traditional flat insulated power cord with an indentation between the two wires, feel both sides for a rib on one side that isn't there on the other side. the ribbed side is neutral. For a pair without a rib, but where you can see that one wire is copper colored and one is silver, the copper color is hot and the silver is neutral. Same goes for the screws you attach to on plugs or outlets not marked hot and neutral, copper or gold color usually is hot and silver is neutral. If all screws are the same color, this does not apply. Anyone can wire the existing system backwards or inconsistently, so do not rely on the convention for safety issues, just observe it for your own work and correct problems when you find them if you can do so safely. If not, consult an expert.

Q:While updating the parents basement we needed to replace a very very old 3 way switch. However, the wiring to the Fluorescents seems extreme to me. Here is how i can describle the layout. Panel - junction box - double splice (one to light fixture and one to threeway switch below it)-. From that threeway switch 12-3 wiring to upstairs landing with other threeway switch resides. How should I make my connections to switches? If the other swtiches were not so old I would just copy them.

This article will describe it better than I could, and it has pictures! ... It sounds like your situation is the same as the second method. Bert