Science & Mathematics - 19 January 2007

If you go faster than the speed of light, you get to go back in time and change stuff. When you go go faster than the speed of sound things go BOOM. Anything good happen when you go faster than the speed of smell?

2007-01-19 23:57:22 · 7 answers · asked by Anonymous in Physics

For instance: a speed of 40m/s that goes down to 10m/s in 20 seconds?

2007-01-19 23:48:16 · 5 answers · asked by ☼lola☼ 4 in Physics

Does this contradict Coloumb's law on electrostatics?

2007-01-19 23:47:32 · 5 answers · asked by kafka 1 in Physics

why is it necessary in animals?

2007-01-19 23:43:53 · 4 answers · asked by Anonymous in Zoology

i am here in east, look at the sky may be see one or two euriopian flying in the sky. lol
scientist said that storm will getting stonger. take care of urself. bye.

2007-01-19 23:40:24 · 4 answers · asked by Anonymous in Weather

In an election , the total turnout was 80% out of which 16% of the total voters on the voting list were declared invalid . What can be the % votes got by the winner of the election if the candidate who came 2'nd got 20% of the total voters on the voting list . {There were only 3 contestants , only one winner & the total no. of voters on the voting list was 20000 ..... Correct answer:anywhere between 20.01%-44% votes.HOW????

2007-01-19 23:34:34 · 2 answers · asked by Anonymous in Mathematics

2007-01-19 23:29:41 · 8 answers · asked by Anonymous in Weather

Anxious.

2007-01-19 23:25:43 · 2 answers · asked by Anonymous in Mathematics

The weight of an iron bucket increases by 33.33% when filled with water to 50% of its capacity .Which of these may be 50% of the weight of the bucket when it is filled with water {assume the weight of bucket & its capacity in kg to be integers}..}. the correct answer: 5 kg...HOW...???????

2007-01-19 23:25:35 · 1 answers · asked by Anonymous in Mathematics

2007-01-19 23:22:42 · 2 answers · asked by rukiya 1 in Engineering

find value #%#11+%%# 2 , where # denotes reciprocal and % denotes square

2007-01-19 23:22:13 · 1 answers · asked by Anonymous in Mathematics

2007-01-19 23:21:14 · 8 answers · asked by Dr. MO 1 in Biology

The price of raw materials has gone up by 15%,labour cost has also increased by 25% of the cost of raw material . By how much "%" should there be a reduction in the usage of raw materials so as to keep the cost same..???? only one answer is correct from the following:17%,24%,28%..Correct answer is 17%...HOW??????

2007-01-19 23:18:41 · 1 answers · asked by Anonymous in Mathematics

The design consists of two parts:
1) The minimum length (L) of the bridge should be 30cm.2) The minimum operating width (B) of the deck should lie between 20 cm and 25 cm .3) The minimum height (H) of the bridge deck from the ground should be 35 cm.4) the over hang span must be minimum a =0.4L on both side equal over hang5) A smooth continuous bridge deck for vehicular traffic must be provided along the entire span of the bridge.
6) A moving load will be applied on the deck of the bridge.
7) The Bridge is to be built in advance.
Definition of Failure:If structure fails, Or the excessive buckling of bridge column, or the brake of any part of structure happen, when the load carrying trolley over its deck.
NO REPAIRS MAY TAKE PLACE ONCE THIS TEST IS STARTED. ANY TEAM CAUGHT DOING SO WILL BE DISQUALIFIED1. The materials specified are standard popsicle sticks (ice-cream sticks), standard adhesive, threads.. Teams using unapproved materials will be disqualified.
2. Adhesive can only be used

2007-01-19 23:16:39 · 5 answers · asked by neel112india 1 in Engineering

wat are orthogonal pairs

2007-01-19 23:15:03 · 2 answers · asked by Anonymous in Mathematics

Or and example of Precipitation or An endothermic reaction or a physical change

2007-01-19 23:12:51 · 6 answers · asked by Yousaf Mahmood 1 in Chemistry

i mean, give me some examples that are solved by the software. And remember to give me the output of the software and the input data

2007-01-19 23:10:53 · 1 answers · asked by Dagmawe N 1 in Mathematics

Why is cos^2 a + cos^2 b + cos^2 c =1 in vectors when a, b and c are angles which a vector OP makes with the Ox, Oy and Oz respectively?
Coordinates of p are (x, y , z).

Please explain clearly!

2007-01-19 22:57:59 · 1 answers · asked by Anonymous in Mathematics

In madras, temperature at noon varies according to -t^2/2 + 6t + 3, where t is elapsed time. Find how much tem more or less in 5 pm to 9 pm

2007-01-19 22:56:00 · 4 answers · asked by Anonymous in Mathematics

Elementry and Advanced Algebra, Geometry, Trigonometry, Co-ordinate Geometry ?

2007-01-19 22:53:21 · 5 answers · asked by Anonymous in Mathematics

Give the equation for Kp for the reaction:

N2(g) + 3H2(g) F 2NH3(g)

ii) In an equilibrium mixture the partial pressure of N2 was 0.305 atm while that of hydrogen was 0.324 atm. If Kp = 61.1 calculate the equilibrium pressure of NH3 and the total pressure of the mixture.
iii) Will the equilibrium composition shift towards reactants or products, or remain the same, if the total pressure is doubled?

4) When 0.515 g of liquid methanol, (CH3OH, molar mass = 32) was burned in oxygen in a bomb calorimeter the temperature of the calorimeter increased from 25 to 26.06 oC. When 2780 J of electrical energy was used to heat the calorimeter at 25 oC the temperature rose by 0.5 oC.
i) Give a balanced equation for combustion of one mole of methanol in oxygen.
ii) Calculate ∆U for this reaction.
iii) Calculate ∆Ho for this reaction at 25 oC.

[R= 8.314 J K-1 mol-1; 0 oC = 273 K]

2007-01-19 22:53:10 · 2 answers · asked by amanda p 1 in Chemistry

A→ B

has a rate constant of 2.5 s-1.

i)What is the rate at time=0 if the initial concentration of A ii) Calculate the concentration of A remaining after 1 s from an initial concentration of 0.7 mol dm-3.
iii)Calculate the activation energy for the reaction if the Arrhenius pre-exponential factor is 1x 1011 s-1 at 35 oC

2007-01-19 22:52:10 · 2 answers · asked by amanda p 1 in Chemistry

Or: why are orbits stable?

For every orbital height, there's a linear speed you need to move at to keep yourself in that orbit. Any faster, and you fly off into space. Any slower, and you crash.

Question is: how can this be stable? Surely going even a tiny bit too fast or too slow will result in flying or falling out of your orbit? So any slight perturbation (crashing into a bit of space junk, whatever) should knock you out of orbit.

Furthermore, the moon, and all other satellites, have been losing energy for as long as they've been up there, by dragging the oceans over the surface of the earth in the form of tides. So they must be slowing down, and ought to crash.

Same applies to the earth around the sun, the sun around the galactic centre, etc.

Why is this process stable?

2007-01-19 22:52:09 · 10 answers · asked by wild_eep 6 in Astronomy & Space

Ok, i've been reading answers to these kinds of questions and theres
always someone telling people not to commit suicide. I know that you guys mean good but I'm only asking out of pure curiosity. I DO NOT intend, in any way, to commit suicide. So if you've got a a good answer to my question then please answer but if all you're going to say is don't commit suicide then thank you for your concern but I'm not a suicidal person. Thanks in advance.

2007-01-19 22:51:16 · 6 answers · asked by William S 1 in Medicine

The cell

Cr(s)│ Cr3+(aq)║ Cu2+(aq)│Cu(s)

has Eo = +1.08V.

If Eo for the half cell Cu2+/Cu = +0.34 V calculate Eo for the Cr3+/Cr half cell.

Give a balanced equation for the cell reaction. How many electrons are transferred in the equation you have provided?

2007-01-19 22:51:07 · 2 answers · asked by amanda p 1 in Chemistry

All the discoveries suggest that we are alone in the Universe so what about the U.F.O's. Are U.F.O's a fantacies only?

2007-01-19 22:49:00 · 14 answers · asked by Indian Primrose 6 in Astronomy & Space

My kids don't believe me when I say no animal has a chin - only humans. Do you know of any animal with a chin?

2007-01-19 22:44:55 · 12 answers · asked by wizebloke 7 in Zoology

2007-01-19 22:43:25 · 9 answers · asked by JoJo 4 in Geography

there are an animal/creature that is very tiny, it's like a ball of very tiny threads... they float in the air and help in the multiplication of the roses some times, because of their extending threads.

they are also resembling to a plant/rose that looks almost alike them... this plant when you blow it it leaves its rosebud and floats in the air too...

any help with the name of the animal/creature and the plant/rose.

2007-01-19 22:42:14 · 7 answers · asked by some1thatfar 1 in Zoology

2007-01-19 22:42:07 · 15 answers · asked by Anonymous in Geography