Science & Mathematics - 18 October 2007

consider a ball in air as it travels through a closed system. the ball loses both kinetic and gravitational potential energy so how can this be reconciled with conservation of energy? where does the energy go?

2007-10-18 18:01:27 · 2 answers · asked by robinf1988 1 in Physics

i watched the whole thing where they saved him and put him in a big nice tank and was going to put him back with his family/pod and then nothing i just found out he died ,its so sad

2007-10-18 17:57:48 · 3 answers · asked by ChrisnCat 1 in Zoology

2007-10-18 17:55:00 · 4 answers · asked by Anonymous in Botany

8/6 is a fraction.

2007-10-18 17:54:22 · 5 answers · asked by Anonymous in Mathematics

I went to Target and when I came back I saw this gray six legged 5 antennaeds insect in their empty dog bowl and it really flexable?What kind of bug is it?

2007-10-18 17:52:04 · 6 answers · asked by lilbum94 1 in Biology

strikes the ground. Answer in units of m/s.

b)How much time does a passerby on the sidewalk below have to move out of the way before the flowerpot hits the ground? Answer in units of m/s.

I'm having a hard time figuring out what formulas to use and how to plug everything into the formula so any help would be greatly appreciated.

2007-10-18 17:50:44 · 4 answers · asked by americasnextopfashiondesigner 2 in Physics

can you define buoyancy in simple words for me? why does a ball of clay sink, while a boat shape floats?

2007-10-18 17:49:34 · 5 answers · asked by Sarah S 3 in Physics

About two years ago I began learning about black holes in science. To be quite frank, I just don't get it... it doesn't make any sense to me.

Can someone explain the concept of black holes in "caveman" terms because the whole sucking light in, nothing escaping thing has me confused.

Thanks!

2007-10-18 17:48:11 · 9 answers · asked by Hello Goodbye 3 in Astronomy & Space

2007-10-18 17:47:07 · 3 answers · asked by john g 1 in Weather

We purchased a portable spa and were told by the sales guy that once delivered it was just plug in and its ready.Problem is they delivered today and it has a 15 amp plug.All our powerpoints are 10 amp.The only available appointment for an electrician is in a weeks time.Can anyone offer a temporary solution as to how we can go about using our spa in the upcpming week until an electrician can sort it out?Thanks

2007-10-18 17:43:17 · 2 answers · asked by Anonymous in Other - Science

I know that we actually cant come any were near the speed of light right now or any time soon.

But Light is measured as traveling 186,282.397 miles per second,

Now I'm no scientist, but I know that that is Bitchingly fast...

But I can't help but thing, If light can be measured like that, dosent that fundamentally mean that there is some way to go faster then that.

If light can go from earth to the moon in 1.2 seconds, how can we say that can't be broken, couldent there be something out there that can go from the earth to the moon in 1.1 seconds.

Now Im not talking about aliens or star trek or anything, but if civilization lasts long enough, and we actually start to get smarter (Unlikely as that would be) and our technology continues to grow, couldn't the human race, or some race in the stars if there is one, somehow find a way to travel faster then light speed.

Now I'm not gonna pretend to know dittily about science or physics.

But my common sense is telling me that if something has a defined speed, there has to be someway to go faster then it as long as that speed has a constant measurement.

2007-10-18 17:42:44 · 17 answers · asked by Anonymous in Physics

2007-10-18 17:40:28 · 2 answers · asked by Anonymous in Earth Sciences & Geology

2007-10-18 17:35:26 · 3 answers · asked by frogster99 2 in Medicine

Why does Lugol's iodine solution stop the process of cytoplasmic streaming?

2007-10-18 17:34:15 · 2 answers · asked by Anonymous in Biology

Pluto's diameter is approximately 2370 km, and the diameter of its satellite Charon is 1250 km. Although the distance varies, they are often about 1.95×104 km apart, center-to-center.
Assuming that both Pluto and Charon have the same composition and hence the same average density, find the location of the center of mass of this system relative to the center of Pluto.

2007-10-18 17:33:31 · 5 answers · asked by Madiyar T 1 in Astronomy & Space

2007-10-18 17:32:39 · 11 answers · asked by freestyle g 2 in Astronomy & Space

Pluto's diameter is approximately 2370 km, and the diameter of its satellite Charon is 1250 km. Although the distance varies, they are often about 1.95×104 km apart, center-to-center.
Assuming that both Pluto and Charon have the same composition and hence the same average density, find the location of the center of mass of this system relative to the center of Pluto.

2007-10-18 17:23:12 · 4 answers · asked by Madiyar T 1 in Physics

Hi. I need 10 Facts on the moon.
please help.

2007-10-18 17:22:20 · 4 answers · asked by sshecklerlover13 1 in Astronomy & Space

If it is not salty and it is fresh water, is the ocean water at the North and South Poles less salty because of all the icebergs?

2007-10-18 17:21:36 · 5 answers · asked by J T 6 in Earth Sciences & Geology

Could we use technology in our lifetime to solve the problem of death? To increase the life span of a person were to the point we do not get old?
I thought what if we could use computers that think of a complex solution to this problem. Like in this case something that can emulate a human brain, but have it run faster. Is this possible?

2007-10-18 17:20:27 · 2 answers · asked by Anonymous in Biology

2007-10-18 17:19:48 · 29 answers · asked by Anonymous in Biology

BONE PAIN? 100 things that causes it?
I need 100 things that can cause bone pain. I already have some that i remember: osteoporosis, fracture, arthritis, and cancer (but I need to know what kind of cancer causes it). 10points to the best answer. Thanks

2007-10-18 17:19:44 · 6 answers · asked by Pinky 5 in Medicine

I know that global warming has SOMETHING to do with severe wheather, but how does it effect the weather in general? PLZ ANSWER ASAP!!

2007-10-18 17:18:13 · 9 answers · asked by plurple_funki_munki 2 in Weather

2007-10-18 17:15:55 · 4 answers · asked by sms_singathiya 1 in Botany

I always assumed it was because it was easier to fit grafts to different sized blood vessels in the heart, if you had an assrtment of sizes available from a single incision.....that it was less offensive to the body so to speak, than taking a number of them.....is that the case, or is there another reason?
Just wondering - cant sleep

2007-10-18 17:14:56 · 2 answers · asked by freshbliss 6 in Medicine

2007-10-18 17:14:02 · 5 answers · asked by Anonymous in Physics

a: Rock types and ages
b: plate techtonics
c: slab pull and ridge push
d: fossils of ocean plants

2007-10-18 17:12:09 · 7 answers · asked by Cherry 2 in Earth Sciences & Geology

2007-10-18 17:11:23 · 21 answers · asked by NARENDER K 1 in Astronomy & Space

2007-10-18 17:11:03 · 5 answers · asked by Anonymous in Weather

find the limit x--> -infinity (e^x-e^(-x))/(e^x+e^(-x))

2007-10-18 17:09:48 · 4 answers · asked by kris 1 in Mathematics