Science & Mathematics - 18 November 2006

2006-11-18 05:28:23 · 10 answers · asked by Anonymous in Astronomy & Space

2006-11-18 05:21:36 · 12 answers · asked by Anonymous in Biology

A force of 28.0 N is required to start a 3.2 kg box moving across a horizontal concrete floor.If the 28.0 N force continues, the box accelerates at 0.50 m/s2. What is the coefficient of kinetic friction?

2006-11-18 05:21:36 · 3 answers · asked by tjmierzwa 2 in Physics

2006-11-18 05:20:12 · 3 answers · asked by savvy s 2 in Astronomy & Space

why water becomes less dense when it freezes and why this is important to all living things??

2006-11-18 05:19:50 · 4 answers · asked by jouliette 1 in Chemistry

2006-11-18 05:18:18 · 2 answers · asked by Allison 2 in Astronomy & Space

why water becomes less dense when it freezes???

2006-11-18 05:17:44 · 9 answers · asked by jouliette 1 in Chemistry

Is there somthing that emits radiowaves?

2006-11-18 05:16:55 · 5 answers · asked by Anonymous in Physics

2006-11-18 05:16:53 · 7 answers · asked by Anonymous in Zoology

Trying to compare "biofootprint" of differnt animals by working out maximum theoretical distance it can travel in its life assuming no interruption etc. Tortoise can live up to 100+ years. Assume all of that time is spent travelling, how far can it get as a proprotion of is body length, say. Likewise a mayfly. Which would would have a greater footprint?

(was drunk when I thought this up and its been bugging me ever since. Incidentally, how fast can a Galapagos tortoise go?!)

2006-11-18 05:14:45 · 1 answers · asked by CuChuoi 1 in Zoology

How does the surface area to volume ratio of a cell affect the rate of diffustion of materials across the cell's surface?


What determines the size and shape of cells in multicellular organisms?

2006-11-18 05:13:30 · 3 answers · asked by Anonymous in Biology

I'm trying to win an argument with my dad, so I need proof of sort. We have this "chipmunk" with _no_ stripes, but body/tail shape of a true chipmunk. It also stuffs itself and its cheeks, unlike the squirrels I've observed. My dad says its a squirrel. Its tail is small and fairly straight, with a tiny curve at the end.

I've researched on the net, but can find only chips with stripes. Anyone? (I would really, for once, like to win an argument with my dad! lol)


Thanks!

2006-11-18 05:12:54 · 8 answers · asked by Anonymous in Zoology

I know of the Kennedy–Thorndike experiment, but it involves light. I am curious whether a different kind of experiments showing relativistic effects like time dilation or length contraction have been performed (I'm thinking of experiments involving mechanical devices like mechanic clocks, rather than light clocks). If there are none, why should we accept that relativistic effects occur for other kinds of moving devices (like mechanical clocks), besides those using light (like light clocks). I'm not questioning SR, I just don't know the answer.

2006-11-18 05:09:23 · 7 answers · asked by quantum 1 in Physics

It's just rising in the east ahead of the sun. It's just a sliver of light along the bottom-right but the dark area is clearly visible. How can this be?

2006-11-18 05:09:20 · 11 answers · asked by Dr Know It All 5 in Astronomy & Space

According to what I'v heard in the past, the water that poored from Jesus' chest when they stabbed him with the spear indicates that his heart had burst. Am I right? and can someone survive this?

I know this is religious and should probably be asked in that catergory but I'm looking for expert opinion from a doctor or medical profesional.

Thanks

Jett B

2006-11-18 05:08:51 · 12 answers · asked by Anonymous in Medicine

How do you predict products? For example: Predict the product and write a balanced equation for the reaction of potassium with chlorine. Why does potassium have to lose 1 ion? Where does that ion go to, the Chlorine? Now the balanced formula looks like this: K+CI2=KCI. I know how to get K+CI2, but not KCI. Please explain as simply as possible. It would also help to put sites where I can get through explanations

2006-11-18 05:08:32 · 5 answers · asked by Anonymous in Chemistry

Pseale aslo gvie the oditxaoin nburmes for all cmodunps, tnakhs!

2006-11-18 05:06:10 · 3 answers · asked by Maziar S 3 in Chemistry

Why did the team have the probe make close planetary passes, other than to investigate the planets on the way by?

2006-11-18 05:05:43 · 5 answers · asked by Coco 2 in Astronomy & Space

I thought I read that there were some carbonized books that they were trying to carefully unroll. They were hoping that they might find works by famous authors that we don't already have. Is there a website that would say what they've found?

2006-11-18 05:05:37 · 2 answers · asked by S K 7 in Other - Science

Please add detail.

2006-11-18 05:03:51 · 4 answers · asked by pie 1 in Other - Science

2006-11-18 05:01:04 · 13 answers · asked by hari p 1 in Medicine

2006-11-18 05:00:18 · 3 answers · asked by audrey =) 1 in Zoology

Consider a frictionless track ABC as shown in Figure P9.26. A block of mass m1 = 5 kg is released from A. It makes a head-on elastic collision at B with a block of mass m2 = 10 kg that is initially at rest. Calculate the maximum height to which m1 rises after the collision.


Here is the diagram http://www.webassign.net/sb5/p9-26.gif


I know that KE and Momentum are conserved....and this is what i have so far...

m1v1=m2v2f + m1v1f

mgh = 1/2mv1^2 + 1/2mv2^2

I don't know where to go from here, if this is even right

2006-11-18 04:59:07 · 1 answers · asked by ĞĦΘsŦŖiĐęŖ 2 in Physics

2006-11-18 04:58:48 · 25 answers · asked by angelonavaro 1 in Biology

Consider factors that influence population, e.g., location, resourses , history.

2006-11-18 04:57:17 · 7 answers · asked by *E X Q U I S I T E 1 in Geography

2006-11-18 04:56:28 · 7 answers · asked by mon20oct 2 in Astronomy & Space

I am in Charlotte, North Carolina.

2006-11-18 04:52:35 · 6 answers · asked by CharWiz 3 in Astronomy & Space

I am asking this question 2 know the biological relation with the emotional aspect of human life .plz tell me u r orignal, real ,true view of SEX and LOVE .

2006-11-18 04:48:32 · 5 answers · asked by Anonymous in Other - Alternative

I realize that this will be difficult because the field is so huge. Please limit yourself to one choice. Thank you.

2006-11-18 04:48:19 · 10 answers · asked by kobacker59 6 in Other - Science

That also gives a distinguishing characteristic of the animal.

2006-11-18 04:45:57 · 4 answers · asked by ray10573 1 in Zoology