Science & Mathematics - 17 January 2007

Anu is four years older than sunil.Eight years ago,Anu was three times sunil's age.Find the ages of Sunil and Anu?

2007-01-17 02:04:59 · 22 answers · asked by Anonymous in Mathematics

in fact i need something which happens when a hot object and a cold object meet....its an invisible thing

2007-01-17 02:02:31 · 3 answers · asked by mukunth 2 in Physics

I am a secretary for a construction company. My boss just asked me to find a weather report for the above dates im gonna check on weather.com but just in case i cant find it can you guys give me some other options? Hes sending some one a request for a time extension on some work he was scheduled to do at that time and the reason y it wasnt done is due to inclement weather. So he needs to prove how the weather was 4 those dates..Thanks!

2007-01-17 02:02:18 · 4 answers · asked by yesindeed 2 in Weather

2007-01-17 02:02:18 · 1 answers · asked by regiz v 1 in Chemistry

2007-01-17 01:59:13 · 1 answers · asked by Anonymous in Engineering

sudesh is twice as old as seema.If six years is subtracted from seema's age and four years are added to sudesh's age,sudesh will be four times seema's age.How old were they 3 years ago?

2007-01-17 01:58:53 · 4 answers · asked by Anonymous in Mathematics

2007-01-17 01:58:16 · 3 answers · asked by jay 1 in Mathematics

we know that as we provide heat (infra red radiations) to any thing light begins to emit from it.first appears red followed by orange n yellow i.e. as we increase the temperature the wavelength of visible light emitted from it decreases.
we are told that the highest temperature in a candle flame is at the tip so how is it so that the core of the candle is blue(of lower wavelength) and the tip red
if i am anywhere wrong in my concept i m sorry for it
please explain this phenomenon to me if u cud

2007-01-17 01:57:54 · 6 answers · asked by pukku 2 in Physics

Find s_3 , the third term in the series which corresponds to the geometric sequence which has a = 8 and r = 1/4.

2007-01-17 01:56:01 · 2 answers · asked by Bill B 1 in Mathematics

2007-01-17 01:55:23 · 22 answers · asked by charlottefarrimond 1 in Geography

2007-01-17 01:55:07 · 4 answers · asked by Bill B 1 in Mathematics

Find s_8 , the eighth term in the series corresponding to the arithmetic sequence which has a = 5 and d = 2.

2007-01-17 01:54:33 · 1 answers · asked by Bill B 1 in Mathematics

I know basic differential geometry (curves, surfaces, curvature, first and second fundamental forms) and a little about tensors, but I need something (hopefully not too difficult) that gives the details and the intuition on covariant derivatives, connections, Riemannian metrics, Reimannian curvature, Lie derivatives, and Ricci curvature.

2007-01-17 01:53:57 · 2 answers · asked by Edward W 4 in Mathematics

Could we not develop more modern gadgets to generate power, harness solar, harness other renewable sources? We have abundance of academics and scientists the world over. Why are we waiting?

2007-01-17 01:53:55 · 4 answers · asked by Gopalakrishnan G 1 in Engineering

We perform the experiment "toss three coins" 1,000 times. How many times do you expect that the event "exactly one head" will occur?

2007-01-17 01:53:12 · 1 answers · asked by Bill B 1 in Mathematics

2007-01-17 01:52:53 · 11 answers · asked by xhoneybeex 3 in Zoology

Set as children's homework for Key Stage 2

2007-01-17 01:51:34 · 5 answers · asked by florenceflossie 1 in Physics

Suppose that during the whole journey there is a constant wind blowing from A to B. If the speed of the aircraft in still air is 165 km/h, find the speed of the wind.

2007-01-17 01:46:54 · 5 answers · asked by Zin Mar 1 in Physics

a) the probability that total score is 10or more given that red dice shows a 6.
b) the probability that total score is 10or more given that at least one of the dice shows a 6.
Can the answer to( b) be 5/11

2007-01-17 01:43:51 · 4 answers · asked by jay 1 in Mathematics

can someone tell me what type of reaction is it and give me the complete balance equation for this one

2007-01-17 01:43:01 · 5 answers · asked by some dude 2 in Chemistry

2007-01-17 01:41:46 · 3 answers · asked by lorlipop 2 in Chemistry

made by orient longman
I just want to know about the logarithm part

2007-01-17 01:39:45 · 1 answers · asked by Arjun M Nair 2 in Mathematics

2007-01-17 01:39:11 · 3 answers · asked by Laurie M 1 in Zoology

We define the sequence a recursively by setting
a_1 = 15 and a_(i+1) =a_i + 4 for all i>=1.
This sequence is arithmetic. Give the explicit description of the sequence.

2007-01-17 01:38:02 · 2 answers · asked by pkbrauer 1 in Mathematics

2007-01-17 01:36:44 · 5 answers · asked by Veronica 1 in Biology

We perform the experiment "toss three coins" 1,000 times. How many
times do you expect that the event "exactly one head" will occur?

2007-01-17 01:36:18 · 5 answers · asked by pkbrauer 1 in Mathematics

We toss two dice. What is the probability that the sum of the faces equals 9? (Give your answer as a fraction, not as a decimal.)

2007-01-17 01:35:20 · 1 answers · asked by pkbrauer 1 in Mathematics

A club consists of 8 seniors, 7 juniors, and 4 sophomores. A subcommittee consisting of 3 seniors, 2 juniors, and 1 sophomore will be chosen. How many different such subcommittees are there?

2007-01-17 01:33:57 · 5 answers · asked by pkbrauer 1 in Mathematics

Are the planets owned by anyone? Are they up for grabs, first come first serve. Does anyone own mineral rights? Are they governed by some treaty between all nations?

2007-01-17 01:33:56 · 11 answers · asked by suoivbo 1 in Astronomy & Space

A club of 10 students will form a Subcommittee consisting of three students. How many different such Subcomitee's can be formed?

2007-01-17 01:30:33 · 3 answers · asked by pkbrauer 1 in Mathematics