Science & Mathematics - 18 November 2006

what are the differences to distinguish the two? thanks!

2006-11-18 20:29:16 · 0 answers · asked by Anonymous in Chemistry

2006-11-18 20:28:58 · 7 answers · asked by anantseam85 1 in Physics

2006-11-18 20:10:00 · 3 answers · asked by Tommy 1 in Chemistry

2006-11-18 20:07:50 · 1 answers · asked by Tommy 1 in Chemistry

A) is always exothermic
B) is always endothermic
C) is never spontaneous
D) may be either endothermic or exothermic
E) increases entropy

2006-11-18 20:04:36 · 3 answers · asked by ph103 1 in Chemistry

I will reward any good help with ten points.
This is part of my physics take home quiz. I worked them out but I just want confirmation to see if what I got is right.

A box rests on the (horizontal) back of a truck. The coefficient of Static friction b/w box and truck is 0.24. What maxmum distance can the truck travel (starting from rest and moving horizontally with constant acceleration) in 3.0 s without having the box slide?
I got 11 meters.

A 0.14 km wide river flows with uniform speed of 4 m/s toward east. It takes 20 s for a boat to cross to a point directly north of its starting point on the south bank. What is speed of boat relative to water? I got 8.1 m/s

Now, help me with thiz one. If the resultant force acting on a 2.0 kg is equal to (3i + 4j)N, what is the change in Kinectic energy as the object moves from (7i - 8j) m to (11i - 5j) m?
The answers are
a. 36 J b. 28J c. 32J d.24J 60J

2006-11-18 20:02:38 · 3 answers · asked by Will 2 in Physics

Two fair coins are tossed together 172times. How many times would you expect to get:
a) twi heads,
b) a head and a tail in any order
?????????????????????????????????
Thank you!!!!!!!!!!!!

2006-11-18 20:01:18 · 12 answers · asked by Cheese G 1 in Mathematics

Should we say 'react' instead of 'soluble'? Or just the same? Or..?

2006-11-18 19:51:30 · 2 answers · asked by Tommy 1 in Chemistry

I am a pharmacy student currently taking Cardiopulmonary Therapeutics. I have an exam on monday about hypertension and Heart Failure. My professor's exams are often case-based, in which she gives information about a patien who presents with certain symptoms from which we have to figure out what they have and what to do about it. I am looking to find more practice with this sort of questioning. Does anyone know of any good resources for hypertension or heart failure cases? They can be books, or online. Also, any other hints about such exams or the class are greatly appreciated.

2006-11-18 19:49:06 · 3 answers · asked by Anonymous in Medicine

I'd like to purchase a telescope for my 30 yr old son, would prefer quality, within a decent price range,we live in Arizona where the sky is always beautiful. He would be a first timer but he is educated, am I better off buying used? what accesories? Where can I go to research this type of item?I don't want plastic pieces, something he may be able to take with him totravel up in the mountains. thankyou for any advice you can share. MOMSRAGE4

2006-11-18 19:44:01 · 5 answers · asked by momsrage4 1 in Astronomy & Space

Why can't we determine the distances to galaxies using the geometric method of trigonometric parallax (triangulation), as we do for stars?

2006-11-18 19:40:27 · 4 answers · asked by rascal 2 in Astronomy & Space

2006-11-18 19:38:57 · 1 answers · asked by Ali a 1 in Chemistry

What part of the world are U in?


I'm in NC and have already seen some,but it should get better.Now that I have thawed out it's about time to go back .BRRRRR......

2006-11-18 19:36:52 · 2 answers · asked by Mary Who? 3 in Astronomy & Space

Why bromocyclopentane and HBr are the only products?
Will other H in cyclopentane being substituted by Br? Under what conditions?
Thank you!

2006-11-18 19:36:06 · 1 answers · asked by Anonymous in Chemistry

2006-11-18 19:27:56 · 10 answers · asked by vanceee 2 in Medicine

"Due to the repulsion of the C-H bonding e- in the eclipsed form of the ring"
Can anybody kindly explain it to me?

2006-11-18 19:25:16 · 1 answers · asked by Anonymous in Chemistry

Is there any limitation in temperature rise? If not, how it is controlled?

2006-11-18 19:25:06 · 2 answers · asked by tapan g 1 in Engineering

Hello all:
Can any body tell me the principles of heterotrophic nutrition, plz elabortae

2006-11-18 19:23:57 · 4 answers · asked by faraj 1 in Biology

2006-11-18 19:23:39 · 3 answers · asked by babygirl w 1 in Zoology

2006-11-18 19:16:02 · 4 answers · asked by Akilesh - Internet Undertaker 7 in Engineering

All creatures on earth have great strength beyond their size. What happened to us?

2006-11-18 19:12:32 · 3 answers · asked by Anonymous in Other - Science

Mood disorders being bipolar, schizoaffective disorders, etc.

2006-11-18 19:12:30 · 7 answers · asked by Eoas 3 in Paranormal Phenomena

if so why these coulds are not comming down to earth if it is heavy to produce that much sound and light?

2006-11-18 19:10:46 · 7 answers · asked by kk_epy 1 in Weather

I'm sure we all have seen those waxy yellow/brown specs on our cars which you usually have to rub extra to get them off. I call them "Bee poop", but I know its to big for bug poop! I've seen it in New York, Chicago, Orlando, Los Angeels, its all over! What is it??

2006-11-18 19:06:07 · 3 answers · asked by zapur01 1 in Zoology

2006-11-18 18:57:08 · 4 answers · asked by Anonymous in Physics

geology ?

What is used for dating rocks and events in geology?

2006-11-18 18:49:58 · 5 answers · asked by The word Fan! 1 in Earth Sciences & Geology

2006-11-18 18:47:26 · 3 answers · asked by raju 2 in Engineering

2006-11-18 18:47:21 · 2 answers · asked by The word Fan! 1 in Earth Sciences & Geology

Explain how numerical age dating works and what kind of information is given by a rock?

2006-11-18 18:45:39 · 2 answers · asked by The word Fan! 1 in Earth Sciences & Geology

Ei I have the following sum 1028 division 16 This has to be to division by factors

xyaxen@yahoo.co.uk

2006-11-18 18:43:43 · 2 answers · asked by Pulislaw 1 in Mathematics