Science & Mathematics - 17 November 2006

How come humans are the only one in the animal kingdom to associate tears with emotions?

2006-11-17 17:42:47 · 3 answers · asked by mamas628 1 in Biology

I think it's a really stupid and ignorant conclusion but I hear it all the time. What is this opinion based on? Wishful thinking. There is zero evidence to support this. imposing our own moral ideals upon utterly alien beings is an attempt at deifying them. All life on earth shares many characteristics in common. Therefore we can find some evidence of the complete opposite. Humanity is not becoming more peaceful and morally superior over time. Our weapons and use of them has if anything grown and there is no longer any honour in war. Hundreds of thousands of people can die at the touch of a button.

Why would a more intelligent species or one more technically advanced want to show any interest in our welfare? Thats crazy thinking. We use Dolphins in Japanese Restaurants, to entertain us at Sea World and plant mines on enemy ships. We give deadly viruses to Chimpanzee's to see if we can cure them or not. We destroy their habitat without concern.Most Alien societies will be like us.

2006-11-17 17:42:15 · 7 answers · asked by jeeperscreepersthree 1 in Astronomy & Space

lol ... for some reason... alll the physicists i know are all so nice... makes me jealous... but its too late to change my major from biochemistry to physics :-/

2006-11-17 17:41:04 · 5 answers · asked by Christine 1 in Physics

What is the maximum distance those types of signalers work and what type of wave to they transmit, infrared? I have an idea for a pay-at-the-pump type swipe device but it would be a click button type thing instead, but wondering if that technology would allow for just one receiver within the station building instead of receivers at each pump as is with current 'swipe' type pay keychain fobs

so the question is how does that car alarm tech work - because current car keyfobs are not "random" enough (ex. one may find their remote operates another car, although the key probably wouldn't) the encryption would have to be more specific than current car alarm type

and what is the maximum distance those types of receiver systems can cover? and what about obstructions/reception issues>

thanks

2006-11-17 17:40:48 · 1 answers · asked by Anonymous in Engineering

I have some project and and need some info.

Thanks!

2006-11-17 17:40:27 · 4 answers · asked by Richie R 2 in Botany

a small source of sound radiates energy equally in all directions at a particular frequency the intensity of sound 1.0m from the source is 1 raise to power -5 W/M2 corresponding to an amplitude of oscillation of the air molecules of 70 micrometer.assuming sound is propagated without energy loss
what will be
the intensity of sound
the amplitude of oscillation of the air molecule at a distance of 5.0m from the source.
Q2
a point source of sound radiates energy uniformally in all directions .at a distance of 3m from the source the amplitude of vibration of air molecule is 1 raise to power -7.assuming no energy is absorbed .calculate the amplitude of vibration 5m from the source
answer:
Q1:a:4 raise to power -7 W/M2
b:14micrometer
Q2 6 raise to power -8 m
plz solve these i could not solve them

2006-11-17 17:39:09 · 3 answers · asked by ghulamalimurtaza 3 in Physics

Acetaminophen is a pain reliver

2006-11-17 17:36:10 · 9 answers · asked by scooter 1 in Medicine

I keep hearing that word in "Spongebob Squarepants".... what is it?

2006-11-17 17:35:53 · 3 answers · asked by Feed the models! 4 in Biology

Please help me with these two problems, there pretty easy, I'm just over complicating things to the point I don't know what to do now. Thanks for helping!

A radioactive substance is decaying so that the number of grams present after "t" days is given by the function A(t)=2000e^ -.02t
(the above function is A(t)=2000e to the power of negative .02t ... Just wanted to clear that up)

a. Find the amount of the substance, to the nearest tenth of a gram, present after 30 days.



b. Find the half-life of the substance

2006-11-17 17:32:32 · 4 answers · asked by Shawn 1 in Mathematics

how do they know it's time to seek shelter, and where do they go if there's no shelter around?

2006-11-17 17:32:29 · 4 answers · asked by kelleygaither2000 1 in Weather

This is for a maths assignement due, & i dont hav enough time 2 think about it all ( as i also hav 3 more different assignments due on top of that) so i just need a little help with it please...

2006-11-17 17:26:21 · 5 answers · asked by Kat 1 in Mathematics

i had a project WORK on cement.
so anyone who knows any information about cement :composition in manufacturing,industries leading,...... etc. please give me.

vamsy
HAVE A NICE DAY

2006-11-17 17:25:57 · 4 answers · asked by HAVE A NICE DAY 2 in Other - Science

Is anybody, other than me, getting a "Day After Tomorrow" feeling from the weather?

If you want proof to unusual weather, look at the news. The weather in Moscow is so hot, bears won't hibernate, tornadoes and flash floods in the north coast of the U.S. I even found a report of icebergs, in New Zealand!

2006-11-17 17:21:51 · 2 answers · asked by leo.soul 2 in Weather

2006-11-17 17:18:47 · 3 answers · asked by mimi 1 in Physics

Which of the following cannot be expressed as the sum of two consecutive positive integers?

a) 17 b) 22 c) 24 d) 26 e) 32

please help!

2006-11-17 17:17:20 · 14 answers · asked by dudes222 1 in Mathematics

Sounds just as dumb as why is the sky blue...

But this is a serious question...

Any opinions... Any science?

Can anyone bull crap there way through this question?

Is it even answerable?

2006-11-17 17:10:50 · 5 answers · asked by Mr. Agappae 5 in Physics

somebody told me that a lightning struck at copper rods , (generally used in very tall buildings to protect from lightning) the rod acquire some rare characters. the alchemy, from the devastating high voltage of electricity from the lightning, make the copper metal into supernatural metal . is is true:

2006-11-17 17:09:18 · 7 answers · asked by appu b 1 in Astronomy & Space

Specially in single storey houses

2006-11-17 17:07:14 · 2 answers · asked by talha 3 in Engineering

a.by adapting and making changes to their environments
b.by moving to more hospitable areas
c.by not altering the natural landscape of their environments
d.none of the above

2006-11-17 16:59:00 · 9 answers · asked by ? 3 in Geography

Please show your work. Thanks =)

2006-11-17 16:58:51 · 6 answers · asked by Anonymous in Mathematics

lim x tends to 0 of the function : {e - (1+x)^1/x}/tan x where e is the natural no. and is equal to 2.17

2006-11-17 16:58:19 · 3 answers · asked by Anonymous in Mathematics

2006-11-17 16:50:40 · 13 answers · asked by Anonymous in Geography

I need to find out how far Thailand is from USA in terms of kilometre for my project urgently!

2006-11-17 16:50:19 · 4 answers · asked by geniusdumb 1 in Geography

2006-11-17 16:47:48 · 3 answers · asked by geniusflightnurse 4 in Chemistry

2006-11-17 16:43:54 · 5 answers · asked by ghaun3 1 in Mathematics

2006-11-17 16:42:59 · 7 answers · asked by kajol b 1 in Physics

I have heard that positron electron pairs can appear out of nothing, I am a high school student who has had no physics yet but I am curious. I am not finding th eanswer to this question easily on the net. Can someone please help?

2006-11-17 16:37:27 · 3 answers · asked by John Frusciante 1 in Physics

If his sister reveives 9 marbles, determine the number of marbles that Pat keeps.

Please show your work =) Thanks.

2006-11-17 16:35:32 · 8 answers · asked by Anonymous in Mathematics

Please show your work. Thanks =)

2006-11-17 16:34:26 · 8 answers · asked by Anonymous in Mathematics

How do I use FOIL method with a binomial cubed ? Our teacher said we need to use FOIL method.
EX. (mn - 5)(mn - 5)(mn - 5) And I have to use FOIL method with that.

2006-11-17 16:33:27 · 8 answers · asked by 梅子怪李 2 in Mathematics