Troubleshooting Definition and 330 Threads

I can't seem to obtain the right answer using the escape velocity formula. I think my problem is with the gravitational constant. I would like to find the escape velocity of the sun. v_e=\sqrt{\frac{2GM}{r}} or v_e=\sqrt{\frac{2\mu}{r}} v_e_\odot=617.54(km/s)...

Hello, I'm new here, and I need help with a problem. I'm sure there is a really easy answer to this, but I don't know what it is. I can't find it googling, probably because it is so obvious to everyone else. But I have a circuit, which requires multiple batteries to opperate. Too combine their...

I've got an assignment for a class in which I'm supposed to make an assignment statements parser using Lex and Yacc...well, actually variants called Flex and Bison. I am having major problems getting this to work. It will recognize one token or character and then give a "parse error". I...

This is another problem I am having troubles with. Here's the prompt: What is the reading of a voltmeter with the proper range and with resistance 5*10^4 Ohms when connected between point b and ground? I know that for voltmeters, V = I_fs (R_c + R_s), and I tried solving for V using the...

can someone please help me with this problem? After emptying her lungs, a person inhales 4.5 L of air at -3.5°C and holds her breath. How much does the volume of the air increase as it warms to her body temperature of 37°C? i used the equation \displaystyle{\frac{V}{T}} =...

Again, my rusty algebra and derivative taking is getting me into trouble. This is from the section on alternating series. Overall, I think I'm getting the concepts, but some of the solutions to the problems are leaving me scratching my head. \sum \frac{(-1)^{n+1}(n+1)}{ln(n+1)} How did...

i have the answer to this problem i just see why I'm not getting the same answer as my solution manuel. i Have two functtions f(x) = x and g(x) = tan(x) and i have to find where these two functions are equal using Newtons method. i subtracted the two functions to get this new function H(x) =...

Im trying to define a function in a MATLAB m-file. function y = f(x) global T; f = 1/(x^5*(exp(h*c/(k*x*T))-1)); but it doesn't work...matlab says ? Input argument 'x' is undefined. Error in ==> D:\Program\matlab\work\f.m On line 6 ==> y = 1/(x^5*(exp(h*c/(k*x*T))-1)); Error...

I'm doing the following problem, it seems to me that I am doing all the correct steps but my answer differs from the answer key, am I missing something? 1. What is the magnitude and the direction of the electric field at a point midway in between a -8.0uC and a +6.0uC change 4cm apart...

I have been trying to install Matlab all year and i keep running into the same problem. When i try to install Matlab i do not get any error messages, but when i try to start it up, it says "initializing" for about 30 seconds then the program just shuts down. I do not know if i am having a...

Hi, I'm having a few troubles with this question on my assignment. I've tried for many hours to get out the answer but i keep getting stuck and am not sure if I'm going about it the right way. This is the question: Three concurrent lines OA, OB and OC are produced to D, E and F...

When ever my cell phone rings near any type of powered speaker I can hear clicks in my speakers, I was wondering if the clicking is occurring because the induction coil in the speaker has a current induced from the changing magnetic field in the radio waves transmitting the call? If so what's...

In ancient times (the Twentieth Century) strings of Christmas lights were wired strictly in series, so if one bulb failed, the entire string would go dark. Consider two competing troubleshooting strategies: Plan A: You start at one end of the string and test each bulb in sequence, until...

I have a small code snip as included below, please have a look at it and please tell me why my program doesn't stop...I am really thankful for your answers... char ch; while((ch=fget(fp)!=EOF){ // print out values of ch }

Ok I'm workin on this porject and I just got this error: ? Error using ==> plot Illegal parameter-value pair. Error in ==> plotfunction at 21 plot(xset, yset,plotsymbol ,xname,yname,title); When I click on it to take me where the problem is, this is what I have there: %...

mask = 0x80; for(i = 0; i < 8; i++) { if((testvalue & mask)!= 0) { cout<<"1"; } else { cout<<"0"; } mask = mask >> 1; } The code displayed was for displaying the bits in a char,however it doesn't work...

we have two cd drives d: and e: our d drive won't open at all. and for some reason our computer doesn't recognize that we have and e drive. I want to install new software, but because neither works, i can't. help?? ~abigale~

My friend has a problem. He has a computer that has one working internet and his other computer's internet is down. They are in separate rooms but are connected by an extension cord. They are both connected to the same modem, any ideas why one is working and the other isnt? (They share the same...

Hey guys, last night my computer was fine until a game froze but since it was about 2:00 AM i just did an emergency shut down and went to bed. Anyways today when i put my computer on it moved painlessly slow. When I try to use the internet it says not responding, almost none of my programs can...

i have finished building pc and spent two days attempting to sort out this problem, when i start pc fans work i get a post beep "more like a click", but nothing on monitor, i don't get error beeps, i have reseated the graphics card, checked all connections, the mobo led lights up ok, i have...

i have a dsl modem connect to pc 1 via Ethernet lan1 and pc 2 is connect to pc 1 via etherent lan2 and sharing internet. pc 1 works fine but pc 2 experienced problems like Messenger service auto disconnect every 50 sec . can not browser some site such as Microsoft.com any suggestion thanks

I forgot the formula for the average value of a function. Is that f(b) - f(a) = f'(c)(b-a) or am I thinking of something else?

My discman has stopped working recently. When I put a CD in and push play, the disc spins for a while and eventually the display reads "No Disc." It occurred to me that maybe my discman isn't recognizing CDs because the lens is smudged, but I'm not sure. Any advice? Should I shell out some money...

i had a problem with a 3 phase motor last week that had me stumped, it would rapidly overheat even under no load, resistance readings of the windings cheked out ok as did short circuit tests, a report from the local rewind shop said that one of the BARS on the rotor was found to be the...

One day, when I got home, my computer started developing these symptoms: Whenever any sound is sent to the speakers, a layer of static is also sent. Icons and images (particularly the mouse cursor and system tray icons) are being distorted with an assortment of cyan and magenta pixels...

If anybody else has had problems with Rise of Nations can you please refer to my post in the Software section.

Hi guys, I'm downloading linux through redhat's ftp site and from the time I went to bed last night --around 2am--- to the time I woke up this morning, 10 am, the progress meter has stayed at 93%. Now...is something wrong, or is it just being quirky and will all come eventually? I'm on an...

I have a quick question for you computer genius out there. When I'm online on this laptop I have a hard time surfing. I can click on most links with no problem, but if the link opens in a new window it doesn't work. A new window opens up, but there is nothing in the address bar and no page...

I recently installed XP Pro onto my comp, and added a 2nd hard drive, and upgraded my RAM. The computer started crashing everytime I'd run virus scan, and on and off when I do other operations, usually when trying to access my 2nd hard drive. The event viewer says that ACPI BIOS is attempting...

Hello. My ride-on Lawn Mower broke down recently. And I'm not a real mechanics or automobile person so please help me out. (it requires a bit of knowledge on circuits) When I turn on the ignition, usually the engine rev's a bit. And then I try it a couple times until it works. Takes about 2~3...