Science & Mathematics - 20 October 2007

Hi, this has probably been asked a million times, and I should know the answer but I am reading so many articles that I am completly confused! How does the forward motion of the car, gravity, air resistance and friction all effect a car going down a ramp, especially when you change the height of the ramp, its surface and the mass of the car? Have I moissed any froces out? Does any one know of any easy to read and digest books about this?

Thanks for any help
x

2007-10-20 01:50:11 · 1 answers · asked by kmsmith 1 in Physics

2007-10-20 01:49:04 · 8 answers · asked by elli s 1 in Earth Sciences & Geology

I am quite pedantic and feel quite guilty for the smallest things.

If someone thought of an idea for a possible invention, but left it there, and I took the idea, improved it, tweaked it, polished it and turned it into an actual working machine and patented it, would it be my invention?

Even if it is my invention according to law, what about morally? Do you think it is stealing, or just sharing information and avoiding reinventing the wheel?

2007-10-20 01:46:08 · 10 answers · asked by worried person 1 in Other - Science

2007-10-20 01:45:51 · 1 answers · asked by mychemicalmikki 1 in Other - Science

Mammals belong to?

(its biology)

2007-10-20 01:43:50 · 3 answers · asked by SIMONE 5 in Biology

Technology is advancing very quickly. With new developments sush as memory polymer and many other things. Where do you think technology is going or what possible products do you think they'll come up with next?

2007-10-20 01:40:29 · 5 answers · asked by Pyi 1 in Other - Science

Also was it closer to the sun and moon then or further away than it is now?

2007-10-20 01:36:01 · 5 answers · asked by Nathan 4 in Astronomy & Space

i = √(-1)

Therefore:
i² = i·i

Therefore:
i² = √(-1) · √(-1)

By some rule of radicals
i² = √[ (-1) · (-1)]

i² = √[ 1 ]

i² = ±1

Where is the flaw?

2007-10-20 01:33:21 · 5 answers · asked by Anonymous in Mathematics

2007-10-20 01:31:42 · 23 answers · asked by One long Holiday 1 in Weather

A building 210 feet tall casts a 70 foot long shadow. If a person looks down from the top of the building, what is the measure of the angle between the end of the shadow and the veritcal side of the building (to the nearest degree)? (Assume the person's eyes are level with the top of the building)

a. 18 degrees
b. 19 degrees
c. 72 degrees
d. 71 degrees

2007-10-20 01:25:15 · 7 answers · asked by hana 1 in Mathematics

a. x(sqrt x^2 + 1) / x^2 + 1
b. x(sqrt x^2 + 1)
c. (sqrt x^2 - 1) / x^2 - 1
d. (sqrt x^2 + 1) / x^2 + 1

2007-10-20 01:22:50 · 2 answers · asked by hana 1 in Mathematics

Why not from east to west?

2007-10-20 01:21:13 · 5 answers · asked by P.Anbil Prabu 1 in Astronomy & Space

why do people assume he/she is a medical practitioner, when it is unusual for a physician to hold a doctoral degree?

2007-10-20 01:20:59 · 8 answers · asked by Man at large 1 in Medicine

I've seen them for years large and small. Some people have said they are poisoness. I don't believe that because I've handled them. They look just like a twig. I threw one off the front deck 2 days ago. He came back last night and is stationary on the glass of my storm door. He's still here this morning.

2007-10-20 01:20:17 · 5 answers · asked by Anonymous in Zoology

2007-10-20 01:13:25 · 11 answers · asked by Anonymous in Biology

2007-10-20 01:07:50 · 6 answers · asked by Anonymous in Physics

If you look at a map, its more towards the eastern part of the country, it just really bugs me.

2007-10-20 01:07:25 · 4 answers · asked by Anonymous in Geography

In minerals what is/are the differences between compete solutions and solutions?
I am told that Olivines are a complete solid solutions;Plagioclase have solid solutions. Any help would be appreciated

2007-10-20 01:04:42 · 2 answers · asked by Gideon 1 in Earth Sciences & Geology

2007-10-20 00:56:01 · 9 answers · asked by malavikka 1 in Zoology

2007-10-20 00:33:09 · 20 answers · asked by Anonymous in Astronomy & Space

are we alone?

2007-10-20 00:32:28 · 22 answers · asked by :)hihihi:) 3 in Astronomy & Space

2007-10-20 00:31:01 · 7 answers · asked by raivoltk 1 in Zoology

if they ever did invent it this could be a possibility.right?

2007-10-20 00:21:58 · 18 answers · asked by :)hihihi:) 3 in Astronomy & Space

tan(π/4+θ) - tan(π/4-θ) = 2tan2θ

I keep getting stuck on this one.
I was trying to use the double angle formula but messed up.

2007-10-20 00:19:24 · 3 answers · asked by Anonymous in Mathematics

The truth is out there- Having worked in the medical industry for years, most of the people in the industry know that MSRA have been around and jumping from patient to patient for years. I have a theory that is not the most popular but I feel may have some validity although the government may not support the theory. We use hormones to enhance our growth in meats and veggies, in support of the food industry antibiotics are used with treating all foods we ingest at some point including feeds for stock animals so cows, chicken and pigs may be getting a double dose before they become our next meal. As we ingest all these foods containing years of breeding stock hormones and antibiotics any hazards we come in contact with are already diluted or have also adopted or absorbed the antibiotics into themselves canceling out any effective qualities they may have at healing us. The media is putting all this out now, after MRSA has been for at least 10 years -

Your thoughts?

2007-10-20 00:16:52 · 3 answers · asked by srmc_007 2 in Medicine