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:trying to find the radio wiring diagram for my suburban to find out where all my speaker wires are .

1994 Chevrolet Suburban Car Stereo Radio Wiring Diagram Radio Constant 12V+ Wire: Orange Radio Ignition Switched 12V+ Wire: Yellow Radio Ground Wire: Black Radio Illumination Wire: Gray Radio Dimmer Wire: Brown Radio Antenna Trigger Wire: N/A Radio Amplifier Trigger Wire: N/A Front Speakers Size: 6 1/2″ Speakers Front Speakers Location: Doors Left Front Speaker Wire (+): Tan Left Front Speaker Wire (-): Gray Right Front Speaker Wire (+): Light Green Right Front Speaker Wire (-): Dark Green Rear Speakers Size: 6 1/2″ Speakers Rear Speakers Location: Rear Doors Left Rear Speaker Wire (+): Brown Left Rear Speaker Wire (-): Yellow Right Rear Speaker Wire (+): Dark Blue Right Rear Speaker Wire (-): Light Blue

Q:i just got two new aiwa stereo speaker's they come with their own wiring in the back but i dont know which wire is whatthere is one black wireand there is another black with gray dashesim thinking the one with dashes is positive?the speaker works both ways

You can use your old ones.

Q:is it safe to use twist on wire connector to connect my new stereo or should i crimp instead?

I would suppose in this case there is a good better best way to do it. IMO I would never do twists on a stereo, at the very least, do butt connectors. Best way would be to solder each wire one by one and seal with heat shrink. That will give you a very clean look and you'll be proud of yourself :)

Q:im installing an amp and i have no clue what to do with thw power wire.... I read to cut open my steros power wire (usually the blue) and wrap my power wire around it... I found the blue wire but there was a tag... Caution Remote output only... This is not the wire for power supply. please connect this wire to the remote for the amplifier... Does this mean i just connect this wire directly to my amp?

ok wait hold up. so the only wire that should be hooked from the amp to the headunit is your speaker wires, remote turn on wire, and your rca cables. ....What you need to do is get the power cable(usually red) run it from positive on the battery to the POS on your amp. next put your ground wire from the GND on the amp to bare metal on your cars chasis.

Q:I need the wiring diagram for the factory radio of a 2008 ford explorer. i need to know which wires are for the back speakers so i can connect my Hi-Lo converter to it!? thanks

I believe this is what you are looking for, or should help... 2008 Ford Explorer Car Stereo Installation Instructions Car Radio Battery Constant 12v+ Wire: Blue/Red Car Radio Accessory Switched 12v+ Wire: Green/White Car Radio Ground Wire: Black/Blue Car Radio Illumination Wire: N/A Car Stereo Dimmer Wire: N/A Car Stereo Antenna Trigger Wire: N/A Car Stereo Amp Trigger Wire: Violet/Red Car Stereo Amplifier Location: N/A Car Audio Front Speakers Size: N/A Car Audio Front Speakers Location: N/A Left Front Speaker Positive Wire (+): White Left Front Speaker Negative Wire (-): White/Brown Right Front Speaker Positive Wire (+): White/Violet Right Front Speaker Negative Wire (-): White/Orange Car Audio Rear Speakers Size: N/A Car Audio Rear Speakers Location: N/A Left Rear Speaker Positive Wire (+): Brown/Green Left Rear Speaker Negative Wire (-): Brown/Yellow Right Rear Speaker Positive Wire (+): Brown/White Right Rear Speaker Negative Wire (-): Brown/Blue

Q:I have a 98' F-150 and need to add a 4 flat trailer wire connector to it. What all do I need to do? Is their a special connector?

If it has an existing plug (6 or 7 Pin round) just buy an adapter. If the truck was equipped with a towing package but you do not have a plug of any kind look under the truck near the rear bumper you should find a bundle of wiring that is not connected to anything. this bundle should include the following colors of wires (red, blue, green, yellow, brown, black with a green line, and White). Go to Auto Zone ot Wal-Mart and get a 4 flat truck side kit. Strip and splice the wires together color to color. Green being your right turn signal, yellow- Left turn signal, Brown-Taillights/Marker lights, White-Ground. If the bundle of wiring is not there then you will need to find the wiring that goes to the tail lights on the truck and splice in to them. Splice into these wires using the same color code i just stated above with Scotch-Locks then for the White wire on the kit just put a ring connector and use a self tap screw to mount it to the frame of the truck or the tow hitch.

Q:I just bought an aftermarket cd player for my Grand Cherokee and I would rather not have to cut and strip wires so I want to get an wiring harness adapter. My question is, can I just get any wiring harness adapter or do I need the direct connection adapter that is specifically made for Chrysler to Kenwood?

Doug is spot on, but missing one thing that im going to add in real quick. The wiring harness makes things simper because it is color coordinated with the aftermarket wire radios. Some chrystler/dodge/jeep come with an existing amplifier that must be bypassed in order to have sound come through the speakers. Lucky this bypass is easy as connecting a wire. (quick note, buy only metra install kits- wiring harness and dash kit) On the wiring harness there will be a blue wire (not to get confused with the blue wire from the radio) coming off of it. This needs to be hooked up with the red wires, or the blue wire from the radio's wiring harness which is the amp remote wire. This bypasses the amp.

Q:I notice my 10/100 Ethernet wire uses 4 wires (2 twisted pairs). I'm curious what each wire is used for. I understand one pair is for Tx (transmit) and the other for Rx (receive) but why does it need 2 wires for each? I assume bits of data cross on one, but what of the other?

Your okorder /

Q:Okay so my question is how would I wire these in a ported box with 2 terminals on each side of the box? Also, is the quot;Bridged Wirefeatured in the diagram negative speaker wire? Thanks.

Bridging isn't something you do with the subs wiring. It's the way you wire them on the terminals. Each amp's manual should tell you which terminals are the bridgeable ones. That's a mono amp. There's not much you can do there with bridging etc..Try looking for a 2 channel bridgeable amp and then worry about wiring the subs. Not sure why you would want two terminals on both sides of the box anyway.