Science & Mathematics - 27 December 2007

My aunts garage doesnt have power after as plugged in her christmas lights.what are the possible damage and method to repair her garage?I'm thinking it's has something to do with the main PNL or the conductors in its circuit is burned due to over current.Let me know what you all think would be the problem and the solution.

2007-12-27 11:20:04 · 2 answers · asked by Anonymous in Engineering

From some place beyond the solar system, a meteorite composed entirely of dark matter is headed sraight for the earth. It has a mass of 50,000 kg and is the size of a loaf of bread. Should we worry?

You can assume that dark matter has no interaction via the electromagnetism.

2007-12-27 11:19:56 · 7 answers · asked by Frst Grade Rocks! Ω 7 in Physics

If Tiger Woods were to play golf on the Moon, how would it affect his game? In particular, how much higher and how much farther would a drive go on the Moon? Include an algebraic solution/explanation.
44 minutes ago - 3 days left to answer.

2007-12-27 11:18:58 · 4 answers · asked by akanthasy 1 in Physics

2007-12-27 11:18:10 · 5 answers · asked by Anonymous in Mathematics

2007-12-27 11:14:54 · 9 answers · asked by bernicenena 1 in Mathematics

If it were possible to put an identical atmosphere of Earth's on Mars and Venus, would either one of them or both of them be habitable for humans?

Or would Mars still not be able to hold it because of it having so little gravity to keep it?

And would Venus just be too close to the sun still to be Earth like even with an identical atmosphere?


Just curious.

2007-12-27 11:08:04 · 7 answers · asked by Count DiMera 2 in Astronomy & Space

Hi i've had a bash at these questions and i've included my answers. Would someone mind checking them and if they're incorrect include the correct theory?
Thanks

Convert rads into degrees
a) π/3 rads
b) 4π rads
c) 11π/6 rads

my answers:
a) 60 deg
b) 720 deg
c) 330 deg

Convert degrees into rads
a) 36 deg
b) 108 deg
c) 540 deg

my answers
a) π/5 rads
b) π/1.6 rads
c) 3π

Thanks!!

2007-12-27 11:06:47 · 8 answers · asked by Anonymous in Mathematics

Can someone please give me some names of great scientists who are still alive today?

2007-12-27 11:03:07 · 9 answers · asked by melanie k 1 in Biology

thats crawl onto you when you still in sleep at night?

2007-12-27 11:02:20 · 3 answers · asked by statecalifornia2009 7 in Zoology

5max^2+20ma

2007-12-27 10:54:42 · 4 answers · asked by Anonymous in Mathematics

all the sightings so far have been on earth, not in the solar system or galaxy. Surely if something existed it would be visible outside of Earth and not just in the sky.

2007-12-27 10:53:54 · 18 answers · asked by Anonymous in Astronomy & Space

Say there is a number that is 4 digits. The middle two numbers are 10. So right now it looks like this : _10_. What numbers can you fill the blanks in with so the 4 digit number is divisible by 72. How many number arrangements like that can be made? If you don't get it ask, because I cant solve it myself. And don't tell me how to solve it because I know basically how. And don't tell me to do it myself because its not even my problem. Its my 10 year old cousins who goes to some special math school who needs it.

2007-12-27 10:50:53 · 4 answers · asked by dramaqueen_95 1 in Mathematics

c+3/c-1=c+2/c-3

2007-12-27 10:50:06 · 6 answers · asked by Anonymous in Mathematics

I'm red and it's my second move. There's money on the game so I'm being extra careful. It looks safe to take the pawn. Should I go for it?

2007-12-27 10:49:42 · 6 answers · asked by Anonymous in Physics

And accept a theory like evolution thats never been proven correct?

2007-12-27 10:44:08 · 15 answers · asked by Jonathan T 2 in Biology

2007-12-27 10:41:26 · 11 answers · asked by DaisyDoll 3 in Weather

Thanks!

2007-12-27 10:40:27 · 7 answers · asked by Christina S 1 in Mathematics

In other words do you think humans will have advanced far enough in terms of our technology and space travel that we will have found another habitable planet orbiting around another star to live on, and be already on it by the time the Sun expands far enough outward to where the Earth is not livable anymore?

2007-12-27 10:39:45 · 12 answers · asked by Count DiMera 2 in Astronomy & Space

:)

2007-12-27 10:37:23 · 9 answers · asked by Anonymous in Astronomy & Space

I have a right quadrilateral (rectangle) of sides A and B.

I need to find the foci of an ellipse that will fit tangent to the center points of all four sides of the rectangle, using nothing but a compass and straight edge.

"Quickie Diagram"
http://i122.photobucket.com/albums/o248/Web_Eagle/fociproblem.gif

I suspect the answer will involve bisecting the sides, setting the compass equal to the diagonal of one of the quadrants, and then marking the longer center line from opposite edges.

BUT, I’m not positive, and on this particular project, I only get one shot. (This actually involves construction, where I will be drilling and cutting into a non-reproducible surface.)

Can anybody tell me clearly if I’m correct, or how else to find these foci? Best proof gets the points!

Thanks!

2007-12-27 10:35:16 · 2 answers · asked by web-eagle 3 in Mathematics

Here are some examples of questions I have problems with:
1. log(x+2) + log(x-2) = log7

2. 2log(base2)^x-log(base2)(x-1) = 3

3. log(x-3)+logX= log7

2007-12-27 10:35:12 · 5 answers · asked by Anonymous in Mathematics

sixty-four cubes of the same size are used to form a larger cube. the outside of the new cube is sprayed with sparkles. how many of the smaller cubes will not have any sparkles on them?

please show the work.

thanks.

2007-12-27 10:32:53 · 6 answers · asked by bballdud123 2 in Mathematics

"Show that for any integer n > 1, we have 1/e - 1/(ne) < (1 - 1/n)n < 1/e - 1/(2ne)."

Challenge yourselves!

2007-12-27 10:30:54 · 1 answers · asked by UnknownD 6 in Mathematics

2007-12-27 10:28:48 · 11 answers · asked by Anonymous in Astronomy & Space

Hi, I am taking my second science in college this coming semester and I am signed up for general botany. All that I know about the subject going into the course is that it is about plants. Any input would be helpful so I will know what to expect (please do not leave retarded answers that has nothing to do with the question or you will be reported). Thanks in advance!!!

2007-12-27 10:28:22 · 5 answers · asked by jlee 4 in Botany

Change each log expression to an equivalent expression involving an exponent.

(1) logSUB(pi) (x) = 1/2

(2) In x = 4

What does "In" stand for?

2007-12-27 10:26:03 · 3 answers · asked by journey 1 in Mathematics

Find the length of the third side of the right triangle.

side one = 4
Hypotenuse = 5

a. x = √33
b. x = 3
c. x = √65 - 3
d. x = 3 -1

2007-12-27 10:21:28 · 4 answers · asked by . 1 in Mathematics

Change each exponential expression to an equivalent expression involving a logarithm.

(1) 3^x = 4.6

(2) e^(2.2) = M

2007-12-27 10:20:48 · 6 answers · asked by journey 1 in Mathematics

For the last few weeks frost and ice have been building up on my heat pump. what is the best way to repair or fix this problem. The heat pump is a coleman DESII Delux.

2007-12-27 10:18:07 · 4 answers · asked by hubbakitty 1 in Engineering

2007-12-27 10:16:48 · 4 answers · asked by Janine B 1 in Earth Sciences & Geology