Troubleshooting Definition and 330 Threads

For some reason, my Mathematica is not working right. I've had it for a long time, and never had any problems like this. Basically, when I start it up and go into the notebook, the first input I put into it works fine, like you can see below. But then, anything after that doesn't work. None...

Hello. I am not at all well versed with computers. My laptop was working fine yesterday. Today I opened it and its telling me that " An ethernet cable is not properly plugged in or might be broken". . I tried following things given on google like open command proof and type something.... But...

I have a GE refrigerator( side by side ) about 11 years old now. I noticed warm milk yesterday. The set points for the freezer/fridge are 0 F and 37F respectively, and the actual temps are -7F and 55F. It seems like the freezer is running constantly, and the fridge side can get a word in...

Hi, I know people here have been super helpful in resolving DYI projects I posted. I'm just going out on a limb, upping the ante a notch a little, I know. Does anyone know anyone that might be capable of troubleshooting/fix a C6 flow cytometer like the one in the image? I've been using it so...

Hey Everyone, I am not an electrical engineer I am a biochemmie and I am here for your help. I have been learning household wiring and troubleshooting electrical wiring problems in my house for the last few months and I am stumped on an HVAC issue and would really appreciate some insights from...

Feed Details : Component X : 80% ( Boiling point : 105 deg.C) Component Y : 20% ( Boiling point : 256 deg.C) Feed Rate : 600 kg/hr Heating medium : Steam @ 145 deg.C operating condition : 50 Torr, 90 deg.C ( Based on Aspen Flash Simulation). Desired Outcome : TO remove 99% of component X...

I've got one of these. It's not even a year old. The problem is certainly in my tow vehicle (2013 Dodge Journey)'s wiring harness . The trailer's port tail light is on all the time. The starboard light never comes on. Neither braking, signaling, nor anything else - including whether the car...

How do you know which binding energy shell to use? In the solution it uses K and L2. Why specifically L2 and not L3 or L1 for example? And what should I do with the information to omit electrons lower than 20kev? I initially thought that meant to omit the electron binding energies lower than...

The problem comes with solutions. However, I dont get the 3 steps in the solutions. Why do they calculate decay for 120min in step 3? And why is only the daughter nuclide relevant and no granddaughter? There might be something lacking in my knowledge about nuclear reactions. Also, I don't know...

Our exercise in lab today was to construct a JK flip-flop using basic NAND gates. The ICs we used were 74LS00 and 74LS10. The circuit diagram we used is this: We were, however, not getting the expected values of Q and Q' based on the values of J, K and CLK. For instance, in my case, CLK=1...

Hello. I am creating a boost circuit and there is a lot of problems while testing. Before creating circuit i have simulated circuit in modelsim. Problems. 1. Sudden voltage rise from 40% to 50 % dury cycle. ( i am checking each duty cycle ) 2. When applying a gate voltage to mosfet the the...

I am not sure what the next step is: Linux kernel 4.18.0-425.3.1.el8.x86_64 work s fine. 4.18.0-425.10.1.el8_7.x86_64 works on two of my five machines. On the other two, I get the screen messages "CPU Stall" but nothing obvious in the log files. The troubled machines have older CPUs (Haswell)...

Hello - We are building a backyard tow rope for my course. All of the electrical components are working as designed; however, the pulley can't consitently grip the rope when only placed around the rim. When looped around 1.5 times the rope continually shifts underneath itself causing the motor...

I tried using coordinates system from cone, but not got what actually want to get. Any idea from you will greatly appreciated. Thanks

Hi! so i kinda stuck when i tried to run my code in MCNP6 because the output keep showing me "bad trouble in subroutine source of mcrun you need a source subroutine." While I am sure i already put my KCODE and KSRC in my code (on the picture below). Could anyone help...

It's clear my theory about how streaming services stream is flawed. Let me 'splain: We watch a lot of BritBox (like, a lot). Britbox is a streaming service, like Netflix and Disney+ and Prime Video (all of which we also have) on our Smart TV. We are trying to watch a specific (new) show ("Why...

Source of my knowledge-: Encoding-: Decoding-: Other references-: Question-: There is no entry for index 7 in the dictionary while decoding, how do I fix this issue?

https://lh6.googleusercontent.com/gIpHfdMTJMBg2-cMkBWqVQYyAUKTwBCzc30JXJ054wfj06IBGeeXFdHd1-VO0J6EFrssOlAe3ntqJaVHSakLZAK8x4BI6pRL5Lb0JWUdDEuaxAm4NPAiUMvtOSLqjrOkH8r0VOv7...

Hi everyone, I have used MCNP6.2 for few years. This is the first time that I encountered the error such as below: bad trouble in subroutine mars_xs_init of imcn l_list too small. I tried to run an input deck and track a bunch of decay isotopes. Is anyone has similar...

Trying to get the last one, but not able to do it. What am I missing. I know that I can't but [-2,infinity] or [3,infinity] because for -2, and 3 y=0 and is not > 0. Any help appreciated.

I am using a power supply (30 kV, 20 kHz) to discharge in air between two electrodes separated by an insulator. For 30 kV applied voltage, oscilloscope shows only 6 kV, and no discharge occurs. What are possible problems and solutions?

I really struggle the get the Latex working for some reason, so I attached my attempted solution in another picture.

Good day, all I have a K1600 motorcycle. Will an after market tire pressure sensor work on a 2014 GTL? Dealers are crazy expensive and was told today that they are on back order. After search the TPMS Sensor Guide, I've new tires ready to be mounted, but a little confused. Any help will be...

I use the equation find that ## F = q v B sin(theta) ## F = 0.01*300*5*10^-5*0.5 F =75 N I don’t know why my solution is not correct?

Pressing the switch at (A) grounds the “U/T release request” pin of the ECU. The “U tailgate O/P” pin at (B) then changes state and signals the FET G170. The connector 586 pin 30 then goes high and powers the tailgate actuator at (C). If you follow the third pin of the FET, it appears to go to...

Plz forgive. Old man fingers on young whippersnapper phone kb. This stove takes an hour to boil a pot of water. I'm looking at replacing the burners right now. They look brand new (top) but who knows? I bought this one (bottom) which is not exactly the same one. The prongs will fit but the new...

hi i have a 646 se from quickie powerwheel chair pride company.i bought it used it always have had a pull on the right side as if the right side motor was weaker so to go strait i had to aim a bit at the left with the joystick.This summer the right motor or close to it started making a...

I have the problem with checking solution in calculators. For example wolfram doesn't give result of this equation. Have you any idea what is going on? Maybe should I simplyfy something. The equation is placed in photo.

Can't figure out what is wrong with my solution. Multiplying 2nd equation with |x'> to get <Φ|x'>=∫<Φ|x'><x'|x'>dx' = ∫Φ*(x')dx' So, W=ψ(x)∫Φ*(x')dx' = <x|Ψ><Φ|x'> But this is wrong. Not sure what is final answer.

I'm trying to build a Van de Graaff generator, but it does not generate any charges. The problem is, I don't know which part is accidentally shorted, or grounded. I use both PVC pipes for the top and bottom rollers. The belt is neoprene rubber, 1mm thick. The rollers are bolted on aluminum...

Hello everyone, I have a maths question (for a change). In summary, I would like to reconcile the following two integrals: Integral A: https://www.wolframalpha.com/input/?i=integrate+(a^2tan^2theta)/(a-b+cos+theta)+dtheta \int\frac{x^2\,dx}{\sqrt{x^2+a^2}(\sqrt{x^2+a^2}-b)} =x...

Hi friends, Let me brief, long story short.. I am working on an LG plasma TV model 42PQ30R. The fault is no display. The tv is turning on, the blue led is working, however there is no standby (red light), tv automatically going in run mode (i.e blue led) Note: sometimes gets off automatically...

I opened up my lappie today to discover that it will not play any sound. Says there are no audio output devices installed. I went through various Google suggestions, including pointing it at my system drivers (Device Mgr > System Devices > Hi Def Audio > Update > Choose from my drive) and then...

In a recent post I wanted to use a capital tau ... and so typed \mathcal{ \Tau_1 } but generated an error ... Can someone please help ... ... I wanted the capital tau symbol as in the following text ... Hope someone can help ... Peter

I attempted this a few times but keep getting the same wrong answer... Converted the values: q1 = 6.6E-6 q2 = 1.42E-6 q3 = -2.04E-6 d1 = .03m d2 = .02m Calculation for force on 1 F1 = - F12 + F13 = - (9E9*6.6E-6*1.42E-6 / .03^2) + (9E9*6.6E-6*2.04E-6 / .02^2) (I used negative for F12 to...

The image doesn't seem to be appearing in the problem statement so here it is: I already know the correct answer and the method to arrive at it. However, I didn't find it very satisfying. So in attempting to create an answer that was, imo, more intuitively satisfying I: a. treated the...

How should I do to eliminate the error message? In what direction should I approach the question? (I have tried difference combination and sequences of the heat exchanger below pinch, all seems not working) Thanks

First image showing script and plot Second image where all I have done is slightly change the thickness and now the plot looks very weird. Final image showing the kind of plot I am expecting. Am I just doing something stupid as I can't see what is wrong/different between my equations and the...

When the C drive gets limited in space, I take some space from the D drive and the audio files in D drive corrupted and can not open. How do I open these files?

Im not sure if I am allowed to post this here. I have a question regarding gfci Our gfci in the bathroom tripped. Steam was accumulated due to hot bath, and then a hairdryer is used. After around 10min,the gfci tripped. It won't reset. Tried switching the circuit breaker off and turning back...

Well, I'm stumped. I've got this 1/4HP Hayward pump that simply will not draw water. I've removed every factor in the system down to the bare minimum, replaced everything in the system that can be replaced and applied silicone lube to everything that can't. I have a six foot length of new hose...

Ok had to start this with a cell phone But need help even with first step Just focusing in on #3 #4 I think is related

I have tried twice now to calculate acceleration of gravity using the general relativistic equation of geodesic deviation and both times my solution is twice the correct answer. What am I doing wrong? As an example here is one problem: Calculate the acceleration of gravity g at the earth’s...

Hi, Trying to figure this out any ideas as to what I am doing wrong? Thanks all

I have an Orion 130 reflector. Never had a telescope before. The field of view is about a quarter inch through the focuser with the 25 mm eyepiece. Does anybody know what I am doing wrong or if there is something wrong with the telescope itself? I'm at my wit's end. Any help would be...

I run a small food manufacturing operation. We process nuts and seeds. We have several grinders/food processors that run at variable speeds. The speed of the motor is varied using an Emmerson VFD. The turning speed of the grinder is very low ( 50-100 RPM) arrived at using a sprocket and chain...

I have some difficulties answering part (b), (c) and (e). Help is appreciated.

Has anyone here submitted an article to STOC 2018? Are you having trouble viewing the comments and reviews? Mentor Note -- Link to the ACM Symposium on the Theory of Computing added: http://acm-stoc.org/stoc2018/

Please tell me which one is wrong! When I put a mass M on one end of a spring!

On occasion my keyboard locks up. IBM thinkpad, Windows 7. It occurs when I am typing a message in a forum like now. Fortunately my mouse still works, so I can save the (incomplete) message and then restart the computer, freeing the keyboard. Any ideas why it is happening and is there a...