Science & Mathematics - 28 June 2007

2007-06-28 05:06:43 · 7 answers · asked by Digby 3 in Weather

2007-06-28 05:05:29 · 8 answers · asked by Anonymous in Mathematics

1. Solve the equation:

4 (7-x) / 3 = x
** Is the answer 4?


2. Find the x- and y-intercepts for the equation:

6x - 36y = 36
** Is the answer (0, -1), (6, 0)?


3. Find the equation of the line through the given points. Write the equation in standard form:

Through (5, -5) and (-1, 2).
** Is the answer 10x - 3y = 4?

2007-06-28 05:03:25 · 5 answers · asked by casper5 3 in Mathematics

NOT one of the definitions from the dictionary.

...and what are the different types of engineering like? [i.e. mechanical engineering, electrical engineering, genetic engineering, etc.]

2007-06-28 05:02:38 · 7 answers · asked by XD 2 in Engineering

I will be in Destin from July 7-14. Has anyone heard of Hurricanes that might be threatining the area this week or next? I was in Desin July 4th week in 2005 and I left the day before a hurricane hit. I tried searching the internet, but I don't think I am using the right search terms.

2007-06-28 05:01:42 · 7 answers · asked by CbopXB 2 in Weather

Someone i know likes to drink hot coffee in the hot summer days (temperatues like 40 deg celcuis).....He tells me he does it to keep his body temperature up to equal surroundings because it makes him feel more relaxed and good....I personally think it is a conditioned response due to his drinking coffee so much that he enjoys the feeling and response (like a comfort blanket) but he insists it is scientific....I figure everyone would perfer a cold drink to bring there temperature down because it makes them feel good

2007-06-28 05:01:10 · 3 answers · asked by Anonymous in Other - Science

for every set S & every metric d on S, which of the following is a metric on S?
1)4+d
2)(e^d)-1
3)d-mod(d)
4)d^2
5)sq root of d

2007-06-28 04:57:18 · 3 answers · asked by akash s 1 in Mathematics

2007-06-28 04:53:23 · 5 answers · asked by James M 1 in Engineering

2007-06-28 04:52:14 · 7 answers · asked by Anonymous in Paranormal Phenomena

Ok, I saw an M&M on the street this morning and thought "What would happen if you fed a captive ant colony chocolate and just chocolate?" Would they survive? Would they thrive? Would they mutate? Would they be able to distinguish between dark and light chocolate? And would they go through chocolate withdrawal when you took it away and gave them real food?

I really need to spend more time writing and less time on odd thoughts. What's the craziest science experiment you could come up with?

2007-06-28 04:49:38 · 5 answers · asked by loryntoo 7 in Zoology

if neil armstrong was the first man
on the moon then who filmed the
moon landing

2007-06-28 04:48:36 · 21 answers · asked by Anonymous in Astronomy & Space

To me it seems like it is a very real possibility. We are here so why is it so far fetched that they may exist? We are continuesly finding new planets as our technology advances and we have even found proof of dried river beds on planets with bacteria(dead) imbeded in the rocks. There are so many different solar systems out there and science is realizing exactly how small of a fraction our solar system is in compairson to the entire universe. So why is their possible existance so criticized and considered "crazy"? Is it just me or does anyone agree? Why or why not??

2007-06-28 04:47:14 · 17 answers · asked by Amber 3 in Astronomy & Space

I need to know which european country did the Flipping the bird come from

2007-06-28 04:45:31 · 4 answers · asked by ohmy 3 in Geography

I found a very shiny reddish rock in my backyard and i think it is a meteorite. It looks like it may have fallen through the atmosphere. Is it dangerous? Can I sell it on ebay?

2007-06-28 04:44:27 · 11 answers · asked by Anonymous in Earth Sciences & Geology

Can someone tell me the steps to solve this?
x^2=-i
the answer is +-(1-i)/sqrt(2)
but I have no idea how to arrive at that answer and know I'm just missing something silly. Thanks!

2007-06-28 04:32:55 · 2 answers · asked by Markus 1 in Mathematics

Instruments used in UV radiation with it's practitions

2007-06-28 04:24:16 · 2 answers · asked by samadovaabditch 2 in Astronomy & Space

2007-06-28 04:22:31 · 6 answers · asked by ma s 1 in Engineering

A vessel is full of a mixture of spirit and water in which there is 17% spirit.

vessel holds 90 litres.


Question :
can we calculate the amount of spirit and water ? how ?

My guess : we said concentration is 17% ..that means in 100 lt water 17 litres spirit and total solution is 100+17=117 litres.

or 17:100 is the spirit and water ratio ...right ?

we know total solution above is 90 litres ,

so spirit is =90*17/117
water is =90*100/117

is this correct ?

2007-06-28 04:21:48 · 3 answers · asked by calculus 1 in Mathematics

Companies those measured UVadiation in Iraq and middle east

2007-06-28 04:19:35 · 1 answers · asked by samadovaabditch 2 in Astronomy & Space

2007-06-28 04:19:22 · 4 answers · asked by Gagan M 2 in Astronomy & Space

2007-06-28 04:18:46 · 5 answers · asked by randall_gilmore 1 in Mathematics

find a linear or quadratic model for the function.

f(2)=2
f(n)=f(n-1)+3

2007-06-28 04:14:55 · 4 answers · asked by Anonymous in Mathematics

A 0.53 kg object, suspended from an ideal spring of spring constant 23 N/m, is oscillating vertically. How much change of kinetic energy occurs while the object moves from the equilibrium position to a point 4.7 cm lower?

2007-06-28 04:08:29 · 1 answers · asked by terra_flare_aqua_ciel 1 in Physics

An ideal spring with a spring constant of 18 N/m is suspended vertically. A body of mass 0.60 kg is attached to the unstretched spring and released.

(a) What is the extension of the spring when the speed is a maximum?
_______meters

(b) What is the maximum speed?
_______m/s

2007-06-28 04:07:37 · 1 answers · asked by terra_flare_aqua_ciel 1 in Physics

2007-06-28 04:07:17 · 2 answers · asked by tinel 1 in Mathematics

2007-06-28 04:06:28 · 10 answers · asked by Eeqa 1 in Earth Sciences & Geology

Two steel plates are fastened together using four bolts (the figure below ). The bolts each have a shear modulus of 7.8 1010 Pa and a shear strength of 5.7 108 Pa. The radius of each bolt is 1.0 cm. What is the maximum shearing force F on the plates that the four bolts can withstand?

2007-06-28 04:06:05 · 2 answers · asked by terra_flare_aqua_ciel 1 in Physics

2007-06-28 04:04:01 · 11 answers · asked by vincent i 1 in Mathematics

Bobs radio shop wants to buy a line of new shortwave radios. Manufacturer A offers chain discounts of 19/10, while manufacturer b offer discounts 18/11. Assume both manufacturers have the same list price. Which manufacturer should Bob buy from?

2007-06-28 04:00:31 · 1 answers · asked by always_smiling98 1 in Mathematics

i know nickel (sp?) tin, aluminum, stainless steel, silver, gold, etc. But what are some other types of metals? Thank you!

2007-06-28 03:56:16 · 4 answers · asked by purple dove 5 in Earth Sciences & Geology