Open Question: round 61679.01209 to 2 decimal places?
Open Question: Algebraic Numbers Proof?
Let's take one part of it
5^(1/3) (the cubed root of 5)
x^3 - 5 is the polynomial with a root of 5^(1/3) therefore 5^(1/3) is an algebraic number
That's the hard bit done for you :) What you need is a polynomial which has the root of your equation
x^3-3 x^2+3 x-6 easy
Open Question: Can entropy be "generated" if information are sent into a black hole?
Let's say a book was sent into the black hole. If it's information is totally lost, will that not "generate" entropy? By "generating" entropy give off heat?
How can that be?
Open Question: What field of engineering should i go for?
Civil Engineering, which is Construction/Building design, forces stress/strain/bending/shear forces etc.
Electrical/Electronic Engineering, which is circuit design/test/repair. Alot of maths and calculations
Mechanical Engineering, which is less complex then the other two academically but is quite practical and more hands on.
It really depends if you enjoy building big things, fixing circuits etc or being hands on mechanically.
Open Question: How much more does it cost to throw away hotel shampoo bottles?
How much more does it cost than the alternative, which is what?
No shampoo bottles at all? it costs less.
Refilling them? that is not practical, too expensive and not hygenic.
recycling them? that could be done, but it doesn't save any money.
And I can't think of any other alternatives.
.
Open Question: How many water molecules at most can bind to 1 molecule of amino acid proline via hydrogen bonding?
Open Question: what came before the big bang?
“This is an interesting time to be a cosmologist,” Carroll said. “We are both blessed and cursed. It’s a golden age, but the problem is that the model we have of the universe makes no sense.”
First, there’s an inventory problem, where 95% of the universe is unaccounted for. Cosmologists seemingly have solved that problem by concocting dark matter and dark energy. But because we have “created” matter to fit the data doesn’t mean we understand the nature of the universe.
Another big surprise about our universe comes from actual data from the WMAP (Wilkinson Microwave Anisotropy Probe) spacecraft which has been studying the Cosmic Microwave Background (CMB) the “echo” of the Big Bang.
“The WMAP snapshot of how the early universe looked shows it to be hot, dense and smooth [low entropy] over a wide region of space,” said Carroll. “We don’t understand why that is the case. That’s an even bigger surprise than the inventory problem. Our universe just doesn’t look natural.” Carroll said states of low-entropy are rare, plus of all the possible initial conditions that could have evolved into a universe like ours, the overwhelming majority have much higher entropy, not lower.
But the single most surprising phenomenon about the universe, said Carroll, is that things change. And it all happens in a consistent direction from past to future, throughout the universe.
“It’s called the arrow of time,” said Carroll. This arrow of time comes from the second law of thermodynamics, which invokes entropy. The law states that invariably, closed systems move from order to disorder over time. This law is fundamental to physics and astronomy.
One of the big questions about the initial conditions of the universe is why did entropy start out so low? “And low entropy near the Big Bang is responsible for everything about the arrow of time” said Carroll. “Life and death, memory, the flow of time.” Events happen in order and can’t be reversed.
“Every time you break an egg or spill a glass of water you’re doing observational cosmology,” Carroll said.
Therefore, in order to answer our questions about the universe and the arrow of time, we might need to consider what happened before the Big Bang.
Carroll insisted these are important issues to think about. “This is not just recreational theology,” he said. “We want a story of the universe that makes sense. When we have things that seem surprising, we look for an underlying mechanism that makes what was a puzzle understandable. The low entropy universe is clue to something and we should work to find it.”
Right now we don’t have a good model of the universe, and current theories don’t answer the questions. Classical general relativity predicts the universe began with a singularity, but it can’t prove anything until after the Big Bang.
Inflation theory, which proposes a period of extremely rapid (exponential) expansion of the universe during its first few moments, is no help, Carroll said. “It just makes the entropy problem worse. Inflation requires a theory of initial conditions.”
There are other models out there, too, but Carroll proposed, and seemed to favor the idea of multi-universes that keep creating “baby” universes. “Our observable universe might not be the whole story,” he said. “If we are part of a bigger multiverse, there is no maximal-entropy equilibrium state and entropy is produced via creation of universes like our own.”
Carroll also discussed new research he and a team of physicists have done, looking at, again, results from WMAP. Carroll and his team say the data shows the universe is “lopsided.”
Measurements from WMAP show that the fluctuations in the microwave background are about 10% stronger on one side of the sky than on the other.
An explanation for this “heavy-on-one-side universe” would be if these fluctuations represented a structure left over from the universe that produced our universe.
Carroll said all of this would be helped by a better understanding of quantum gravity. “Quantum fluctuations can produce new universes. If thermal fluctuation in a quiet space can lead to baby universes, they would have their own entropy and could go on creating universes.”
Open Question: Geography Case Study on Rio de janeiro?
Also if its possible, i have done alot on this but more cant hurt but some same related information on Leicester? thankyou :)
10 points for good accurate and helpful information :) x
Open Question: what anatomical structure connects the stomach and the mouth?
Open Question: In the uk, are there cameras on top of lampposts? ?
Open Question: how to work out the difference in temperature?
this means take the maximum value and add the minimum value to get the difference between the values.
Open Question: How has our idea of the human body been shaped as a result of lifelong exposure to images of the human body?
Michael Wand Member since:May 02, 2011Total points:95 (Level 1)How has our idea of the human body been shaped as a result of lifelong exposure to images of the human body in advertising, film and television.(I need a really good answer with a paragraph!)Answer QuestionBe the first to answer this question.
Open Question: What kind of bat is in this video?
Open Question: Find the inverse of the following matrix equation?
Open Question: Find a basis for W={[a b c d]: a+d=b+c} and state the dimension of W.?
[a b]
[c d]
Thanks!
Sorry, I could not read the content fromt this page.
Open Question: Is this some sort of past life?
? Member since:May 02, 2011Total points:95 (Level 1)I honestly do not know how to explain this! I have been meaning to ask it for years! OK so.Everything i do, i always think of me and this man, not a boyfriend or anyone, because he is about 42 and i am 13. But I have this thing about us going around London, and he has a job to do with politics? Is this got to do with my past life???Answer QuestionBe the first to answer this question.
Open Question: how to find the degree of dissociation?
Open Question: what is the value of cos2x if x=pi/3?
120 degrees is in quadrant II, where cosine is negative. The reference angle is 60 degrees and cos(60) = 1/2.
So cos(2pi/3) = - 1/2
Open Question: Why do Heterozygotes have dimmer bands than homozygotes?
What is this phenomenon called?
Open Question: What does "!" mean in math?
10!/8!
please explain.
Sorry, I could not read the content fromt this page.
