Science & Mathematics - 3 December 2007

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What's the meaning of empirical antibiotic treatment?

2007-12-03 20:53:41 · 4 answers · asked by valer16 1 in Medicine

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Y can a outer planet’s moon the size of the planet Mercury hav a thick atmosphere when Mercury itself has none

A Because of the concentration of gases in the vicinity of a Jovian planet, the moon formed in an unusually dense environment.

B The moon is outgassing its atmosphere, so that the atmosphere is continually regenerated.

C The moons in the outer Solar System are subject to frequent impacts from the icy bodies – the atmosphere can arise from the gaseous materials emitted by these impacts.

D The temperature in the outer Solar System is low enough that the gases in the moon’s atmosphere do not reach escape velocity.

E If the moon formed more recently than Mercury, it may still have its atmosphere but will eventually lose it.

2007-12-03 20:41:14 · 5 answers · asked by fundamentalz27 1 in Astronomy & Space

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How can we change mixed fraction to decimal form?

2007-12-03 20:30:09 · 10 answers · asked by jennifer c 1 in Mathematics

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Paranormal? Or A way through time?

I know how crazy this may sound & feel free to answer this in any way. When I was @ a very young age and I lived in Lorain , Ohio. I lived about 4 doors down away from lake erie. On the weekends My folks would invite friends&families over for get togethers and have these HUGE cookouts and parties out in the backyard. The place would be jamed packed, the others had to park their cars inside our backyard. So the grill & my kiddie pool would be out. My father & mother's friends & families would be out just having the best time and the music is on. But here is this thing that keeps hauting me. You see everytime I would walk around the house into a complete circle. By the time I reach the otherside of my house noone was there. The grill , pool, people & mom and dad and the cars. They were all gone not to be seen. BUT I can still hear them. So when I walk the other way to return where I came from they were there again. So , can anyone please help me with this? Thank you!

2007-12-03 20:18:22 · 15 answers · asked by steven_tyler_1984 1 in Paranormal Phenomena

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Why does water extinguish fire?

2007-12-03 19:57:59 · 7 answers · asked by disca_daniel 1 in Physics

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Physics Conceptual Question - II?

10. Can a body have momentum without having energy or energy without momentum?
11. Pressure is a scalar quantity while forces produced by the action of pressure are vectors. why?
12. Viscosity is an example of transported phenomenon. what property is being transported?
13. Why we become physically tired when we push against a wall, fail to move it and therefore do not work on it.
14. Two unequal masses are attached to the ends of a solid rod. Which mass is nearest to the centre of mass lighter or heavier and why?
15. Is the gravitational force a conservative force?
16. Why do auto manufacturers recommend using different viscosities of engine oil in cold and hot climate?
17. Soap films are much more stable thatn film of water, why?

2007-12-03 19:56:24 · 2 answers · asked by Steve S 1 in Physics

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Solve log(x+1) - log(x-1)=1... Walkthrough please?

i'm having trouble... help?

2007-12-03 19:41:05 · 9 answers · asked by Hans Lambert 1 in Mathematics

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easy algebra problem?

write an equation of the line that is parallel to the given line and passes through the given point.
1. y=2x+2 (3,2)

2.y=-2x+3 (4,4)

can you please help me...i know how to solve these problems but im not quite sure if i did it right...im just double checking!

2007-12-03 19:39:06 · 4 answers · asked by Anonymous in Mathematics

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The area in dispute between the United States and Great Britain in 1845 lay between?

a. the forty-second parallel and the Columbia River.
b. the Cascade Mountains, the Columbia River, and Puget
Sound.
c. the 36°30’ line to the Columbia River.
d. the forty-ninth parallel and the 54°40’ line.
e. the Columbia River, the forty-ninth parallel, and the Pacific Ocean.

2007-12-03 19:36:30 · 1 answers · asked by Anonymous in Geography

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is morphine highly addictive?

2007-12-03 19:29:42 · 24 answers · asked by Anonymous in Medicine

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if P=mgh/t find g?

please help me

2007-12-03 19:26:54 · 8 answers · asked by Chris B 1 in Physics

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If you were standing on the South pole, would every direction be North?

2007-12-03 19:12:43 · 9 answers · asked by creep144 1 in Geography

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about hydrostatic test in process plant or petrolium?

i wanna know if fluid was liquid that material of pipe is selected stainless steel (321) and design temperature was 350 c and design pressure was 25 barg , would you tell me that what would test pressure be?

2007-12-03 19:11:40 · 2 answers · asked by ? 2 in Engineering

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