All categories - 7 May 2007

y = a sin(t -kx + )

Give the name and meaning of each symbol, and show how the frequency, wavelength, and velocity can be deduced from this equation. [30%]

Derive the Doppler shift equation:

for a sound source that is moving towards a fixed detector at velocity vs . (fo is an emitted frequency, fa is the apparent frequency, and c is the speed of sound) . [40%]

In many applications waves are transmitted from a stationary source, and reflected back by a moving object. State one such application, and write down an expression (in terms of the velocity of the moving reflector) for the frequency shift that will be detected. [30%]

2007-05-07 21:14:53 · 1 answers · asked by abdo a 1 in Physics

2007-05-07 21:14:50 · 6 answers · asked by Anonymous in Computer Networking

How do I fake the memory size so that OS will recognize that I actually have a lot of RAM. Eg. I have 512 MB RAM but certain program need more than that. So, if I can fake the RAM size (with settings or 3rd party software) and the OS recognise it as 2 GB, then I can installed the program that I needed. Thanks.

2007-05-07 21:14:46 · 8 answers · asked by tehes 2 in Other - Computers

what wil be the final temperature of the water? c water = 4.18 J / g °C:
and how are you coming to that conclusion
my answer does not look right to me

2007-05-07 21:13:40 · 3 answers · asked by Anthony L 1 in Chemistry

I've tried various virus scanners and spyware programs but it can't find anything has anyone got any ideas what else I could do? Apart from re-install please

2007-05-07 21:13:17 · 6 answers · asked by twalpole_2000 2 in Internet

found in ireland

2007-05-07 21:13:07 · 1 answers · asked by Keith W 2 in Television

would you break up with your bf/gf if you sensed that that person would potentially harm you physically? sometimes my bf scares me

2007-05-07 21:12:53 · 16 answers · asked by Anonymous in Singles & Dating

I got too much crap to do and getting paid too little.
I'm smart enough to be promoted but they are too damn cheap to let me go to the next level.
Most of the people in my department are airheads. They just walk around complaining to people in different departments about how things aren't getting done and yet they are the worse offenders. I hate those dumb low life A$$ kissers, why dont'they just open their mouth bigger and inherit the full crap dump while they are at it. How can someone bring themselves lower than dirt to get a little bit of favortism at work.

I'm in the process of looking for a new pasture to flee to but the search will take a while... Grrrrrrrrr..

I wish I win the lottory to get away from these morons that are suposed to help make society a livable place!!!!!

2007-05-07 21:12:39 · 11 answers · asked by Anonymous in Other - Society & Culture

i am using windows 2000, i want to access the windows startup programs list which starts when boot and when log me in.

2007-05-07 21:12:24 · 6 answers · asked by Anonymous in Other - Computers

Okay my science project was basically using chromatography to separates 6 inks: red, yellow, blue and orange, green and purple. My hypothesis was that red, yellow and blue [primary colours] would be made up of themselves and that orange, green and purple [secondary colours] would consist of their respective primary colours e.g. orange would be made up of red and yellow.

However, the red turned sort of pinkish, the orange was made of pink and yellow and the purple was made of blue and pink.
So the reds kind of turned out pink...

So, what should the conclusion of my experiment be? And for the orange, the dye was definitely pink, and did not turn pink just because the water diluted it...

2007-05-07 21:12:14 · 4 answers · asked by MissUnderstood 3 in Chemistry

I am working on sales project in which I have to introduce my product to companies in which would need my product and therefore I have to come up with a list of companies the country in which I target has and the contact details of the right person to speak to.

Thank You!

2007-05-07 21:11:32 · 2 answers · asked by Invasion 3 in Other - Business & Finance

2007-05-07 21:11:23 · 26 answers · asked by stuscuba 1 in Weddings

2007-05-07 21:11:04 · 7 answers · asked by Ferdinand 2 in Elections

Our bodies are natually made for intercourse with the other sex, so how can being gay be natural? It doesn't make sense
especially for females.

I have heard of these gay couple actually hurting each other because they want intercourse, but of course there bodies aren't made for it, there bodies are made for the other sex.

Everything a human does is related somehow to reproduction so how can gayness be true, people say why am I alive but if they follow all of there actions they'll realize it's for reproduction.

2007-05-07 21:10:51 · 26 answers · asked by MLVNDMS 2 in Lesbian, Gay, Bisexual, and Transgender

It is on her side, and the area is swollen and hot...I cleaned it out with water and used neosporin on the area...is there anything else that I need to do? Should I go to the E-clinic?

2007-05-07 21:10:45 · 5 answers · asked by karma0398 1 in Dogs

Okay here's the deal. I have school, work two jobs, and other random stuff to get done. I need to stop sleeping without doing anything Illegal. It is goingt o take more than coffee because i need to do this for three mothns or so.. any advice?

2007-05-07 21:10:40 · 6 answers · asked by dingoboy 1 in Other - General Health Care

It was more brown than red.Is this a good way to know if someone's blood is full of toxins? (I eat junk food almost everyday). A healthy person's blood should look fresh bright red (crimson, burgundy, scarlett or fire-engine) just like what you see in the movies, am I right?

2007-05-07 21:10:39 · 4 answers · asked by Anonymous in Other - Health

do you think they can determine someone's intelligence?

2007-05-07 21:09:56 · 7 answers · asked by The Wise One 2 in Standards & Testing

2007-05-07 21:09:36 · 2 answers · asked by cherry 1 in Dogs

I have been married for half a year. My wife is a wonderful person and I adore her. She is physically very beautiful as well and so far everything is great.
The only thing that bothers me is that I simply don't like her clothing style. It's not that she doesn't care about how she looks, she does. We just have different opinions about it. Unfortunately, it makes her less attractive sexually for me, and she has, of course, noticed it, and it must have hurt.
I feel pretty bad about it. It seems right that I should accept her style as a part of her personality and not let stupid things like clothes affect it. It's just that I can't control it. I feel a lot of guilt about it.
She might even be willing to change her style for me, but it feels very wrong to my mind, as if I'm trying to change her. I really don't want to control her in any way.
So far, I did the typical thing: kept clear of the subject. What should I do?

2007-05-07 21:09:30 · 23 answers · asked by Anonymous in Marriage & Divorce

1. Attract one another weakly
2. Repel one another weakly
3. Strongly attract or repel each other
4. Neither attracts nor repels one another

2007-05-07 21:08:55 · 4 answers · asked by ajith k 1 in Physics

2007-05-07 21:08:53 · 14 answers · asked by Robert Haydn 1 in Security

2007-05-07 21:07:24 · 21 answers · asked by Anonymous in Religion & Spirituality

I'm 29,and i have two baby girls,want to try it,any comment?

2007-05-07 21:06:48 · 1 answers · asked by rebewms 2 in Pregnancy

is the tubelight UV light

2007-05-07 21:06:47 · 8 answers · asked by Anonymous in Reptiles

Ok, I'm 17 and I haven't had my period since the end of Jan/beginning of Feb. I was supposed to have it at the beginning of January, but I skipped that one too. So i havent had a period in about 3-4 months. I have taken 4 or 5 at home pregnancy tests and they have all came out negative. My mom told me that when she was pregnant with my little brother that the doctor's and the at home tests didn't come out positive until she was about 4 months along. Is it possible that that is happening to me too? I am really worried because I am supposed to start college in June. Has this happened to anyone else? I am not really stressed out, so i don't think that that is what is causing me not to have my period. Could there be something seriously wrong with me, like a medical condition or something? Is there anything else besides pregnancy and stress that could cause me to miss my periods? Please help...

2007-05-07 21:06:36 · 3 answers · asked by $A-Money$ 3 in Women's Health

I love mine, he is almost 3 and just precious.....I am not looking for advice, I already know just about all there is to know about the species as I did TONS of research before purchasing one....Just curious if any other owners are out here and curious about your experiences.....turtlegirl

2007-05-07 21:06:01 · 1 answers · asked by Anonymous in Reptiles

2007-05-07 21:05:54 · 10 answers · asked by Anonymous in Cooking & Recipes

2007-05-07 21:05:50 · 7 answers · asked by Anonymous in Pregnancy

I have received a few. What should I do and what could happen if I reply?

FROM MR ROY ZULU
Johannesburg South Africa
E-Mail:[royzulu1112@hotmail.com]
E-Mail:[joyzulu1112@yahoo.com]
Tel: 0027-83-940-2930
Dear: Sir/Madam,

My name is MR. ROY ZULU, the eldest son of LATE MR. ALOYSIUS ZULU, from REPUBIC OF ZIMBABWE. It might be a surprise to you where I got your contact address, I got it from the South African Information Network Online (SAINO)/South Africa Trade Centre. And it is coming to you with good intention. During the current crises against the farmers of Zimbabwe by the supporters of our President, ROBERT MUGABE to claim all the white owned farms in our country, he ordered all the white farmers to surrender their farms to his party members and their followers.


My father was one of the great and best farmers in the country and knowing that he did not support the president's political ideology, the president's supporters invaded my father's farm burnt down everything, shot him and as a result of the wounds sustained, he became sick and died after five days. And after his death, I with my younger brother decided to move out of Zimbabwe for the safety of our lives to South Africa. BUT, before he died he wrote his will, Quote, "MY BELOVEED SON, I WISH TO DRAW YOUR ATTENTION TO THE SUM OF ($26,000,000). MILLION U.S DOLLARS, WHICH I DEPOSITED IN A BOX WITH A SECURITY COMPANY IN JOHANNESBURG SOUTH-AFRICA IN CASE OF MY ABSENCE ON EARTH CAUSED BY DEATH ONLY YOU SHOULD SOLICIT FOR RELIABLE FOREIGN PARTNER TO ASSIST YOU TO TRANSFER THIS MONEY OUT OF SOUTH AFRICA FOR INVESTMENT PURPOSE. I DEPOSITED THE MONEY IN YOUR NAME AND YOU CAN CLAIM IT ALONE WITH THE DEPOSIT CODE. YOUR MOTHER HAS ALL THE DOCUMENTS. TAKE GOOD CARE OF YOUR MOTHER AND BROTHER." Unquote.

From the above, you will understand that the lives and future of my family depends on this money as much, I will be very grateful if you can assist us. I with my younger brother are now living in South-Africa as POLITICAL ASYLUM SEEKERS and the financial law of SOUTH-AFRICA does not allow ASYLUM SEEKERS certain financial rights to such huge amount of money .In view of this, I cannot invest this money in South-Africa, hence I am asking you to assist me transfer this money out of South-Africa for investment purposes. For your efforts, I am prepared to offer you 20% of the total fund, while 10% will be set aside for local and international expenses and 70% will be kept for me and my family.

Finally modalities on how the transfer will be done will be conveyed to you once we establish trust and confidence between ourselves. Looking forward to your urgent reply .For detailed information, please contact me on my e-mail address [royzulu1112@hotmail.com]
E-Mail:[joyzulu1112@yahoo.com]


All the best,
Mr. Roy Zule.
(For the family)

NOTE: THE KEY WORD TO THIS TRANSACTION IS ABSOLUTE CONFIDENTIALITY AND SECRECY. THIS TRANSACTION IS 100% RISK FREE. YOUR URGENT RESPONSE WILL BE HIGHLY APPRECIATED.

2007-05-07 21:05:39 · 11 answers · asked by Rikki L 1 in Internet