Science & Mathematics - 17 November 2006

2006-11-17 15:14:46 · 5 answers · asked by pssstoast 1 in Biology

What is the approximate human range of audible frequencies?

Among light, sound wave,Infra-red radiation, ripples on a water surface, which one is longitudinal wave?

2006-11-17 15:14:22 · 5 answers · asked by free aung san su kyi forthwith 2 in Physics

A math teacher had chartered a 20 seater bus as she plans for an excursion to the zoo. The number of seats were just right for her 19 students and herself. However at last hour before they set-off, the school principal and his wife and a senior teacher wanted to join in for a free ride, knowing that this 5 hours journey would cost them if they were to drive their own SUVs'. The math teacher was informed and asked to make arrangement for some students stand while all teachers including the principal and his wife to be remained seated at all time. The math teacher sheepishly obliged welcoming her boss and the two additional free riders. Without giving much thought and desperately trying to boast her forte, she balatantly promised the principal that there ain't gonna cause her any problem and each student would be given a fair share of seating and standing time.
Can you help this teacher? How's she gonna do her maths for this problem that she promises so inadventantly? No trickery

2006-11-17 15:11:20 · 5 answers · asked by Anonymous in Other - Science

have you seen the way white people eat bananas?! they like hold it with both hands and then bite it from the middle...i couldn't help but laugh in mexico.

2006-11-17 15:09:32 · 12 answers · asked by sugarnspice9108 1 in Zoology

2006-11-17 15:08:25 · 3 answers · asked by al_batros59 2 in Astronomy & Space

Wouldn't the beam be at a constant considering light is constant, so therefore should not dim?

Or should I lay off the booze and go to bed?

2006-11-17 15:07:37 · 13 answers · asked by This is my username 3 in Physics

2006-11-17 15:03:11 · 4 answers · asked by pssstoast 1 in Biology

I've been told that I look like a gecko... what about you???

2006-11-17 15:02:03 · 8 answers · asked by Anonymous in Zoology

I live in the Houston, TX area...I have a good view of the Eastern sky...what are people's thoughts on how the shower will look this year?

It was really good back in 1998 and 1999, but I lived in a rural area then which made viewing incredible!

2006-11-17 14:58:20 · 7 answers · asked by The ~Muffin~ Man 6 in Astronomy & Space

What will happen if there is no atmosphere?

2006-11-17 14:57:21 · 3 answers · asked by Siara 1 in Astronomy & Space

Hey!!!

I've put an egg in a glass of vinegar overnight. I've noticed a sort of reddish brown deposit on the shells which peels off easily, but the shell is still here. What is the deposit and why is it of that colour? How much time will it take for the shell to disappear completely. Waiting for your answer!

2006-11-17 14:55:29 · 11 answers · asked by mauridhan 1 in Chemistry

if a humanoid being were composed of densely woven spider silk how much ballistic and or edged protection would his or her flesh provide if he or she was 6ft 220 lbs or 7 ft 260lbs ?

2006-11-17 14:54:40 · 1 answers · asked by bolounit1 2 in Chemistry

They say this is basic Algebra!
There are $8.80 in nickles, dimes and quarters. If he has 4 nickels fewer than three times the number of dimes and one quarter more than three-fourths the number of dimes, how many coins of each type does he have??????

2006-11-17 14:54:23 · 13 answers · asked by Jan O 1 in Mathematics

If a humanoid being composed of dense spider silk like flesh existed lets say 6ft 220 lbs or 7ft 260lbs how much ballistic and or edged protection would his or her flesh provide

2006-11-17 14:51:23 · 2 answers · asked by bolounit1 2 in Engineering

You have a transparent (borosilicate) glass window. Sun rays are falling on the glass, which is let's say placed horizontally. Some of the radiation passes through the glass, some is reflected back but some is absorbed and heats up the glass. How much of that total radiation is actually absorbed and makes the glass heat up? I speculate that would be somewhere around 2-3%. Any specialist in optics or heat flow?

2006-11-17 14:51:04 · 3 answers · asked by ovi.schi 1 in Physics

9x/5 + 5y/4 = 47/10
2x/9 +3y/8 = 5/36

another one
x/4 +3y/7 = -2/21
2x/3 + 3y/2 = -7/36

I am pulling my hair out with these!!

2006-11-17 14:50:45 · 7 answers · asked by Jan O 1 in Mathematics

If you do, then do you get a atom bomb explosion?

2006-11-17 14:50:30 · 7 answers · asked by Anonymous in Physics

I know is only 20 ft long but I was told by a teacher this was possible? Is it true or a myth???

2006-11-17 14:44:23 · 14 answers · asked by DANIEL O 1 in Biology

If you were to weigh a log, and say it came out to 10 pounds, Then burn the long untill theres nothing else to burn, and catch all the gasses that come from the burning log, into a huge bag, or some other thing, will the gas weigh 10 pounds when the log is done burning?

2006-11-17 14:43:58 · 5 answers · asked by kkkkkkkkkkevin 1 in Other - Science

In 1900, tuiton at havard was $3000 per year. In 1999, Harvard tuition had risen to $22,054.What percent of increase is this? in 2005, the tuition grew to 26,066. What percent of increase is this over the 1999 tuition

2006-11-17 14:43:31 · 7 answers · asked by jamie d 2 in Mathematics

Let sqrt denote the square-root operator. Find the following:
sqrt(1+2sqrt(3+4sqrt(5+6sqrt... where the iteration is taken to infinity.

2006-11-17 14:42:13 · 5 answers · asked by clamcrunchies2 2 in Mathematics

The perimeter of a rectangle is 41 inches and its area is 91 sqare inches. Find the length of its shortest side.

and

The sum of two numbers is 6 and their product is 4. Find the larger of the two numbers.

I really am not sure where I am going... I need an explanation of how to solve the problem and answer would also be useful. Thanks.

-asian_al

2006-11-17 14:42:09 · 10 answers · asked by Anonymous in Mathematics

We are destroying ourselves. Why would anybody want to do that? Is it that we've just become too dependent on all of the things that are causing Global Warming?

2006-11-17 14:41:32 · 20 answers · asked by Anonymous in Weather

I'm working on a birth chart for my own astrological curiousities, but that's not really important. What is, is that I've been asked to divide my GMT birth time by 10 seconds, to make up for the difference between the 24-hour day and the sidereal day. You don't really have to know what those mean... the point is, how do I divide the time 13:19 by ten seconds?

2006-11-17 14:36:39 · 5 answers · asked by Kiki 3 in Other - Science

2006-11-17 14:35:59 · 15 answers · asked by Anonymous in Engineering

2006-11-17 14:35:33 · 1 answers · asked by richard adriano 1 in Chemistry

What is the vertex for the parabola y = 2x^ 2 - 8x+15

2006-11-17 14:35:21 · 2 answers · asked by Eric 2 in Mathematics

I'm working on a birth chart for my own astrological curiousities, but that's not really important. What is, is that I've been asked to divide my GMT birth time by 10 seconds, to make up for the difference between the 24-hour day and the sidereal day. You don't really have to know what those mean... the point is, how do I divide the time 13:19 by ten seconds?

2006-11-17 14:35:18 · 3 answers · asked by Kiki 3 in Geography

I know foods can explode in the microwave, especially if there is fat or oil in the food, so I always cover food when I cook it. Yesterday I was heating a mug of plain water, and after about 90 seconds of heating it I heard a terrific BLAM. I turned off the microwave, waited 10 seconds, and then when I looked inside, most of the water was all over the inside of the microwave with only about an inch left in the mug. What's the scientific explanation behind the explosion of plain water?

2006-11-17 14:31:43 · 11 answers · asked by azera221 4 in Physics

Here is the equation
(3x + 5)(2x 3) = (x 1)(6x + 5)

the supposbly answer is x = 5, is the answer true or false? Please can anyone help here, I think its false, but I need to be sure I'm right. ^^

2006-11-17 14:26:25 · 13 answers · asked by Lizzie 5 in Mathematics