All categories - 6 November 2007

I was given this physics problem but I'm not too sure on how to approach it. It reads:

For tests using a ballistocardiograph, a patient lies on a horizontal platform that is supported on jets of air. Because of the air jets, the friction impeding the horizontal motion of the platform is negligible. Each time the heart beats, blood is pushed out of the heart in a direction that is nearly parallel to the platform. Since momentum must be conserved, the body and the platform recoil, and this recoil can be detected to provide information about the heart. For each beat, suppose that .050 kg of blood is pushed out of the heart with a velocity of +.25 m/s and that the mass of the patient and platform is 85 kg. Assuming that the patient does not slip with respect to the platform, and that the patient and the platform start from rest, determine the recoil and velocity.

Thanks to anyone who attempts this. I'm really stumped and any explanations, tips, and details will be a great help!

2007-11-06 14:44:20 · 3 answers · asked by doubtful 2 in Physics

I remember hearing from Christian friends, during the time that the Tim Lahey books books were getting popular...."The anti-christ is going to be from Rome or Italy....." I would hear this alot. just curious as to if there is such a scripture because I have read none such.

2007-11-06 14:44:19 · 21 answers · asked by Anonymous in Religion & Spirituality

2007-11-06 14:43:55 · 9 answers · asked by thepaladin38 5 in Other - Politics & Government

What company or companies would you buy a stock from??

2007-11-06 14:43:41 · 9 answers · asked by Anonymous in Investing

I just saw Zeitgeist and was amazed at the number of paralell stories that were lifted by Biblical scribes. I knew about the story of Gilgamesh and have see words attributed to Jesus spoken in the Bhagavad Gita much earlier. But I was amazed at the exact references to Christ appearing over and over in other religious texts.

2007-11-06 14:43:37 · 3 answers · asked by Anonymous in Religion & Spirituality

see it hink it does cuz when it s cold or hot different people have different emotions about the weather

2007-11-06 14:43:09 · 20 answers · asked by ALICE E 1 in Weather

I never understood this. I've smelled many flowers in my day, some do smell better than others. But in general, all of them have the same grassy scent. It doesn't stink, but it certainly doesn't smell as good as everyone says it does.

2007-11-06 14:43:03 · 11 answers · asked by Neiner_Weiner 5 in Garden & Landscape

What do you think was the most important event pushing the North and the South towards the civil war???

2007-11-06 14:43:02 · 12 answers · asked by Love 3 in History

2007-11-06 14:43:01 · 31 answers · asked by HisPrincess 1 in Diet & Fitness

we are going to orlando. obviously we are going to visit the parks and all that... what is around in nearby citiesthat we could that is either free or cheap? we are travleing with our 6 yr old... tell me your ideas:)

2007-11-06 14:43:00 · 3 answers · asked by got2bwendy 2 in Orlando

I am currently on Lutera and ive been on it for about 7 months. I take my pill every afternoon and in the evenings, my stomach hurts really bad. I have not been "in the mood" for sex lately and am not sure if this pill is causeing these reactions. Is it ok to stop taking my pills half way throught he pack. And if so, what will happen if anything?

2007-11-06 14:42:58 · 5 answers · asked by hottie2089 1 in Women's Health

2007-11-06 14:42:52 · 7 answers · asked by left_sock_ missing 3 in Polls & Surveys

(Yes, it is about hubby's annoying boss again....)

2007-11-06 14:42:37 · 3 answers · asked by from HJ 7 in Polls & Surveys

2007-11-06 14:42:20 · 16 answers · asked by Bunny Boiler 6 in Polls & Surveys

Do you think that the world will be a better or a worse place 100 years from now?

2007-11-06 14:42:07 · 9 answers · asked by Bryson 2 in Politics

Do all hospitals offer a thing that lets you work at the hospital while taking classes to get a degree in that field ??

I want to get like maybe a respritory therapist degree or be able to do ultra sounds but i dont know the name of that job and none of the colleges i can find near me offer them.

would the hospitals offer it?

2007-11-06 14:42:01 · 3 answers · asked by corrick_1 6 in Health Care

can someone tell me was it based around.
like disco,retro,drive inns.

if you can, leave a link to a picture.

2007-11-06 14:41:55 · 13 answers · asked by hawaiibloo 1 in History

Some say only 40% believe. I would just like to get a poll to check the validity of that figure.

2007-11-06 14:41:55 · 52 answers · asked by ignoramus_the_great 7 in Religion & Spirituality

I am a Christian but it bothers me how the followers must go by "faith." Almost all religions follow this and you're not allowed to question the religion, are they trying to make you blind to everything else?

2007-11-06 14:41:53 · 24 answers · asked by Bobby 3 in Religion & Spirituality

I'm sure theres plenty of legitimate reasons to hide your real name. can you explain some of yours?

Should I avoid using YOUR real name if I answer your questions?

2007-11-06 14:41:50 · 25 answers · asked by Anonymous in Polls & Surveys

Answer honestly. I know there are alot of built up feelings about them.

Let it out here.
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2007-11-06 14:41:49 · 9 answers · asked by Sha 4 in Law & Ethics

If it were to come down to this based on last week's game (defense and rushing) at gillette stadium wouldn't you have to say the colts would beat NE in the cold and snow where you are gonna have to run the ball???

2007-11-06 14:41:47 · 19 answers · asked by Anonymous in Football (American)

I am an international student (Asian) who is now studying Commerce at University of Toronto in Canada. I am very interested in pursuing a career in acting and I am now looking for good Acting programs preferably in New York City. I have heard of Stella Alder, AADA, HB Studio, Actors Studio, NYU, Julliard... But I dont know which ones are better. Secondly, the four year program of NYU is not affordable for me. Do you have any particular program in mind that you think I may benifit from? And is it common/ likely for an Asian student to succeed in an acting program in the States?And do you thinks it's a okay choice if I take 2 or more years off for performing arts program and try things out then go back to commerce if nothing works out for me as an actress?

2007-11-06 14:41:41 · 6 answers · asked by joanna 2 in Theater & Acting

2007-11-06 14:41:28 · 3 answers · asked by Beaux B 1 in Maintenance & Repairs

I'm trying to decide between a 2003 mustang gt 5spd or a 2002 camaro ss 6spd any recommendations?

2007-11-06 14:41:24 · 15 answers · asked by Hector P 1 in Buying & Selling

2007-11-06 14:41:21 · 1 answers · asked by sojo3 1 in Chemistry

2007-11-06 14:41:13 · 17 answers · asked by Buddy Hodor 7 in Polls & Surveys

2007-11-06 14:41:08 · 5 answers · asked by S R 1 in Beer, Wine & Spirits

2007-11-06 14:40:42 · 1 answers · asked by Anonymous in Biology