Science & Mathematics - 30 January 2007

ive heard of it before but i want to know if its true.
i think its somthing to do with their insides and acids the wrong way up.
answer plz
ox

2007-01-30 20:46:52 · 3 answers · asked by Anonymous in Zoology

So my theory is what wiped out tha dinosaurs was back pressure more specifically a great series of powerful gusting winds, any thoughts?

2007-01-30 20:44:52 · 4 answers · asked by Thin King 3 in Earth Sciences & Geology

2007-01-30 20:43:09 · 2 answers · asked by Kelvin K 2 in Mathematics

2007-01-30 20:41:43 · 4 answers · asked by Kelvin K 2 in Mathematics

2007-01-30 20:41:19 · 7 answers · asked by jp 1 in Earth Sciences & Geology

2007-01-30 20:39:44 · 2 answers · asked by singh k 1 in Engineering

photosynthesis is effective at wavelength 400nm to 700nm. it decreases above 700nm and below 400nm.

2007-01-30 20:38:54 · 3 answers · asked by Anonymous in Biology

Have you ever noticed that? They fall during the day. Can it because of the weather condition or what?

I am afraid of flying a lot. That is my observation. What do u think?

2007-01-30 20:38:07 · 4 answers · asked by snitta 1 in Other - Science

I've seen people swimming in lakes in May and June when the water is in the 50's or low 60's. And they don't seem to feel the cold!

2007-01-30 20:35:32 · 6 answers · asked by Anonymous in Weather

B.A English

2007-01-30 20:32:27 · 2 answers · asked by edwin d 1 in Geography

Especially clueless 17 year old creationuts trying to come off as highbrow, like the ones that frequent y! answers.

2007-01-30 20:31:51 · 6 answers · asked by Anonymous in Biology

Q. What amount of force must be applied by the elbow flexors inserting at an average perpendicular distance of 0.015m from the axis of rotation at the elbow over a period of 0.3seconds to stop the motion of the 3.5kg lower arm swinging downwards with an angular velocity of 5.0rad/s when the radius pf gyration for the lower arm is 0.20m? Prove by calculating.

Possible solutions:
1) T = F * d and F = ma, for a use g (9.81m/s/s)
2) T = F * d, and F = ma, for a use 5rad/s / 0.3s
3) T.t = Δ I ω and I = mr²

Which one is correct?! Thanks.

2007-01-30 20:30:09 · 4 answers · asked by grace300182 1 in Physics

I have data which shows the incidences of a health condition as a % of the population. Can these % measures be used for t-testing?
I cannot use the actual number of incidences as the population size is growing.

2007-01-30 20:28:49 · 3 answers · asked by Tatiana 3 in Mathematics

2007-01-30 20:26:54 · 4 answers · asked by Quentin 2 in Engineering

2007-01-30 20:26:47 · 5 answers · asked by sheryl 1 in Mathematics

give me technical data

2007-01-30 20:25:50 · 1 answers · asked by Anonymous in Engineering

How cold does it have to be to "cold enough for ya"?

2007-01-30 20:15:55 · 7 answers · asked by Anonymous in Weather

Any truth to the theory that an unusually cold February leads to an unusually warm June? And vice versa?

2007-01-30 20:14:13 · 4 answers · asked by Anonymous in Weather

2007-01-30 20:13:53 · 26 answers · asked by Anonymous in Astronomy & Space

2007-01-30 20:12:41 · 6 answers · asked by flavorlicious 2 in Astronomy & Space

anyone know where can i get a dc drive motor in singapore, the specs are 1800rpm, 90vdc, 3.1A

2007-01-30 20:11:21 · 2 answers · asked by Zhao H 1 in Engineering

Is this true? and will this mean that we will also lose one of our fingers?

2007-01-30 20:08:40 · 23 answers · asked by Skippy 5 in Biology

This is a problem in my textbook:
Consider the reaction W + 3Y = 2N + 4Z
A solution was prepared by mixing 100.0 mL of 8.04 x 10^-3 M W and 200.0 mL of 4.63 x 10^-3 M Y. After the system had come to equilibrium, the absorbance, A, of the solution was measured at a wavelength (600nm) where only Z absorbs light. The value of A (absorbance) was found to be 0.422.

The following data were also collected for known solutions of pure Z at 600nm:
[Z]-------------------A (absorbance)
2.00x10^-4---------0.100
5.00x10^-4---------0.240
8.00x10^-4---------0.390
18.0x10^-4---------0.880

I just don't know where to start with this one. Not even sure I understand what it's asking me to do! Thanks for the help.

2007-01-30 20:07:52 · 2 answers · asked by thesekeys 3 in Chemistry

2007-01-30 20:07:33 · 25 answers · asked by Anonymous in Weather

There was a zoologist walking down the street with a baboon.

They meet another zoologist, who says, "Hey, what are you doing with that ape?"

The first zoologist says, "Excuse me, a baboon is not an ape - he's actually a type of old world monkey."

The second one says, "Yes I know that, but I wasn't talking to you."



I was going to try this joke on "religion and spirituality", but I reckon they would have had my Yahoo! account deleted.

2007-01-30 19:49:20 · 3 answers · asked by Anonymous in Zoology

PLEASE give me an answer because i have a report to do i need to pass it in tomorrow 1/2/07

2007-01-30 19:47:00 · 7 answers · asked by step my knee 1 in Zoology

2007-01-30 19:46:17 · 2 answers · asked by Mr. KnowItAll 7 in Engineering

Hello well today (Witch was a lovely day thanks for asking) i was assigned a math problem that read like this.

heres a 1,2,3 box with no top what is the surface area? I think its 16ft2 but i could be wrong.


Then it gives me a cylinder that is radius of 1 and height of 2 what is the surface area of this? i think its 18.84 sqft


But now the big qu is how does the surface area of the 1,2,3 box compare with the surface area of the cube?

Any helpers?

2007-01-30 19:45:03 · 7 answers · asked by Anonymous in Mathematics

pot,coke,

2007-01-30 19:43:58 · 2 answers · asked by Anonymous in Medicine

Solve the equation for x using the given information:

a) 4 + ƒ(x+3) = -3; ƒ ֿ¹(-7) = 0

b) ƒ ֿ¹(x+1/x-2) = 12; ƒ(12) = 13

2007-01-30 19:42:21 · 6 answers · asked by karen y 1 in Mathematics