Science & Mathematics - 13 November 2006

Rewrite without exponents. Can you please show your work? I am horrible at math and have no idea where to begin. thanks

(-8)^-1

2006-11-13 04:41:15 · 5 answers · asked by pirsimone 1 in Mathematics

Steel portal frames consist of rafters and columns. What is the design principle? For what do we design these different members? Is it for tension? For shear? For uplift? Or anything else?

2006-11-13 04:40:50 · 4 answers · asked by Mokshu_zzz 1 in Engineering

If we didn't have rods and cones in our eyes, we wouldn't be able to see color. How does the camera compensate for this?

2006-11-13 04:37:40 · 6 answers · asked by Joey L 1 in Physics

i just took a final for chemistry and one of the questions what...draw a stereostructure of PCl5...i had no idea what to do can somebody please tell me?

2006-11-13 04:35:23 · 4 answers · asked by Anonymous in Chemistry

or give me some links reg.numerology and house names

2006-11-13 04:34:18 · 11 answers · asked by anil 1 in Other - Science

2006-11-13 04:33:50 · 6 answers · asked by Anonymous in Mathematics

What would the percent change be? Final mass 1.00
Initial mass 0.92
Show work to earn points
I got 109

2006-11-13 04:32:47 · 4 answers · asked by Zman 1 in Mathematics

if the magnetic needle placed in center part of polar regin,it is in vertical direction or in horizontal direction....

2006-11-13 04:32:21 · 1 answers · asked by uma d 1 in Earth Sciences & Geology

2006-11-13 04:31:17 · 2 answers · asked by spongytoast 2 in Astronomy & Space

why?

2006-11-13 04:31:10 · 6 answers · asked by neon_matrix5000 2 in Astronomy & Space

if the magnetic needle placed in center part of polar regin,it is in vertical direction or in horizontal direction....

2006-11-13 04:31:09 · 1 answers · asked by uma d 1 in Astronomy & Space

2006-11-13 04:30:50 · 2 answers · asked by mirchi 1 in Mathematics

2006-11-13 04:29:38 · 6 answers · asked by Anonymous in Engineering

i need answers for physical science.

2006-11-13 04:29:16 · 1 answers · asked by kcbear120 1 in Physics

I need to know where I can get a clear map of how the modern German Government is broken down. (In a manner similar to how the US states or Canadian provinces make up the US & Canada)

2006-11-13 04:28:20 · 2 answers · asked by MillionQuestions Man 2 in Geography

2006-11-13 04:28:00 · 2 answers · asked by Aljeet 1 in Chemistry

2006-11-13 04:23:05 · 29 answers · asked by Sonia S 1 in Mathematics

In my chem lab, we had a solution of 1 drop bleach (5.25% NaOCl) and 1 drop 0.1M HCl. After it reacted for a bit, we added 1 drop of NH3. The question is "explain how this terminates the reaction using words and chemical equations." I think I get the word part (wouldn't the NH3 just neutralize the HCl, and then the NH3 doesn't react with the NaOCl?) but what about the equations?

2006-11-13 04:16:58 · 1 answers · asked by Kiko 3 in Chemistry

Supposed that a 1000 kg car is traveling at 25 m/s Its brakes can apply a force of 5000n what is the minimum distance required for the car to stop?

2006-11-13 04:16:39 · 4 answers · asked by Anonymous in Physics

Will it snow for Christmas or will there be snow on the ground? Or does anyone know if we are expecting any great snow falls this winter season?
My family plans to travel the week of the 26th, from Ma. to southern Cali, any good predictions?

2006-11-13 04:15:12 · 3 answers · asked by Mystee_Rain 5 in Weather

E.g. Smoking, Bonging, Vapour inhaler, Dissolving the THC in ethanol? etc...

2006-11-13 04:15:11 · 6 answers · asked by Anonymous in Botany

Hi,

I was watching the right stuff this weekend, and the pilot of one of those old school mercury orbiters said that his velocity was 57,000 kph. I wondered how one could measure the velocity of the craft from inside. It couldn't be air pressure like with a plane, or with radar because it's moving too quickly. I was very confused about this. Ideas?

Thanks,
Matt

2006-11-13 04:15:03 · 5 answers · asked by Matt 3 in Astronomy & Space

seriously

2006-11-13 04:14:59 · 21 answers · asked by Blueberry 1 in Other - Science

2006-11-13 04:14:21 · 8 answers · asked by HVAC_CPRAO 1 in Engineering

2006-11-13 04:11:25 · 7 answers · asked by smile 3 in Physics

2006-11-13 04:06:25 · 5 answers · asked by Nut 2 in Zoology

if the magnetic needle placed in center part of polar regin,it is in vertical direction or in horizontal direction....

2006-11-13 04:04:04 · 3 answers · asked by uma d 1 in Astronomy & Space

a) The probability that anna passes the test is 1/2 (half).
The probability that boris passes the test is 4/9

Calculate the probability that both anna and boris pass the test. Give your answer in its simplest form.

b) The probability that Chloe passes the test 3/5
The probability that both Chloe and Danny pass the test 7/15.

Calculate the probability that both Chloe and Danny fail the test.

2006-11-13 04:02:08 · 7 answers · asked by sheena l 2 in Mathematics

it is currently impossible to achieve manned supersonic or even sub sonic travel under water due to the mass of water right? And the pressures that depth can create,it limits how fast we can go... we could currently go faster with the subs we have by adding horse power.even if we could get enough power into a submersible to go supersonic it would just rip apart like hitting a brick wall. Do any of you think that by basically creating a submersible that looked similar in desighn to an aircraft, with the same wing lift and drag ratios. That by useing air or a lighter element to create and keep a virtual air buble around the ship that it would correct and illiminate the heavy mass problem.Thin making it PROBABLE to achieve MACH + speeds???? INPUT PLEASE thanks

2006-11-13 03:59:43 · 8 answers · asked by anthony conant 2 in Physics

A playful secretary typed 8 different bussiness letters, addressed the eight corresponding envelopes, and then distrubuted the letter among the envelopes at random.
(a) Probability that no one will get the right letter
(b) At least one person will get the right letter

2)

2006-11-13 03:57:53 · 4 answers · asked by magt_g 1 in Mathematics