Science & Mathematics - 15 January 2007

I can't remember what to do with the y in the equation. Do I treat it like a constant, or do I have to differentiate with respect to x and then with respect to y? That sonds familiar, but it's been so long, I can't remember.
Thanks

2007-01-15 09:39:48 · 4 answers · asked by Sara 1 in Mathematics

First problem: z+4/6=3/2-2z+2/12 second problem: 5/-x-6=2/x third problem: x-3/x+1=x-6/x+5 fourth problem: 3a-2/2a+2=3/a-1 Does anyone know how to solve with correct answer? Help! No one is getting the right answer to these problems. Please help solve and show me how you did it....thanks

2007-01-15 09:39:27 · 2 answers · asked by gail 1 in Mathematics

i am trying to calculate my bmi.
what does that have to do with a job application anyway?

2007-01-15 09:39:04 · 11 answers · asked by Jessy A 2 in Mathematics

The lattice energy for sodium iodide is 700 kJ./mol, while that for calcium sulfide is 2775 kJ/mol. Which of these salts do you predict has the higher melting point? explain

2007-01-15 09:38:25 · 2 answers · asked by Anonymous in Chemistry

2007-01-15 09:37:31 · 5 answers · asked by Mamoo 2 in Geography

When you look up the weather results they give you the actual temperature and the temperature that it " feels like". Who decides and how is the "feels like" determined?

2007-01-15 09:35:33 · 2 answers · asked by angelbeblue 2 in Weather

2007-01-15 09:35:06 · 5 answers · asked by tinklemytinky 1 in Earth Sciences & Geology

Hi,

A negative charge is contained by the cube in Figure Ex27.6 ( http://i137.photobucket.com/albums/q208/infinitbelt/p27-06.gif ), in which E1 = 13 N/C and E2 = 22 N/C. The electric field is constant over each face of the cube.

Does the missing electric field vector on the front face point in or out? -I got this as it points in.


Here's the question I am having trouble with:

What is the minimum possible field strength?

I thought that it should be 8 NC as that would give -1 NC in the cube. What am I doing wrong?


Thanks!

2007-01-15 09:35:01 · 3 answers · asked by Anonymous in Physics

Problem Solver 8 #6?
As a marine bioloigist on the submarine Neptune, Petra is charting the number of fish in specific areas of the oceans. She is currently survying an area in the front of the sub. The rooms are arranged on 3 sides. One day a Petra was counting the fish, she saw 20 fish threw the windows of rooms A,B,C, and D; 20 fish in the windows of rooms D,E,F and G; and 20 fish in the windows of rooms G,H,I and J. She saw a different number of fish in each room. How many fish did Petra see through the window of each room?

Someone please answer this!!!

2007-01-15 09:34:49 · 1 answers · asked by natalie2244suwak 1 in Mathematics

Express your answer in terms of the acceleration of gravity g.

2007-01-15 09:34:35 · 1 answers · asked by da_playa_way40 1 in Physics

2007-01-15 09:34:27 · 6 answers · asked by Oopsie Daisy 3 in Medicine

Thank you soo much for your help.

2007-01-15 09:34:04 · 4 answers · asked by ♫ singin_gurl1200 ♫ 3 in Biology

i cant find this anywhere either. name the six functional groups of organic compounds and write their structural formula.

2007-01-15 09:32:55 · 13 answers · asked by uluvme8807 3 in Chemistry

there are 4 angles. the top two are 70 degrees and 110 degrees. the next is unknown(x) and the next is 40+x. i have to find the value of x, then find the unknown angle. HELP!

2007-01-15 09:32:02 · 14 answers · asked by Brandy 1 in Mathematics

Can someone tell me a problem that you would have to find the volume of a rectangular prism?Could you tell me the formula on how to solve it and what the answer is?

2007-01-15 09:31:41 · 2 answers · asked by Anonymous in Mathematics

what causes a diamond kite to fly for a little bit, but then it nose dives
i used dowels for the t and a plastic material for the kite
the string is in the front and its croseed down the kite




PLEASE HELP

2007-01-15 09:31:12 · 2 answers · asked by Urradletshugxxx 2 in Earth Sciences & Geology

west 35 degrees of north

I dont understand how to do this

2007-01-15 09:31:04 · 1 answers · asked by hahahatso 1 in Physics

the arctic is melting....you thing the penguin will survive?

2007-01-15 09:30:54 · 6 answers · asked by whosyourmamy 1 in Zoology

We have some in the back, that no one goes near, so none of us knew it was back there. Will they die if we tip the bucket they are skurming around in over?

2007-01-15 09:28:23 · 8 answers · asked by dark_angel_360 2 in Other - Alternative

2007-01-15 09:26:14 · 8 answers · asked by ? 6 in Biology

anything. thanks.

2007-01-15 09:25:49 · 1 answers · asked by Anonymous in Mathematics

2007-01-15 09:25:27 · 5 answers · asked by Brandy 1 in Mathematics

2007-01-15 09:24:06 · 1 answers · asked by favre 2 in Mathematics

2007-01-15 09:23:28 · 21 answers · asked by Simon T 1 in Astronomy & Space

2007-01-15 09:21:52 · 2 answers · asked by Anonymous in Astronomy & Space

rts itself into my body 7 years before I die......just b4 I get pregnant with my second child...he of course exists now.....so would his conception be safe even if I knew that I had to concieve him. Does the fact that he exists now prevent me from doing anything that would prevent him being concieved?

2007-01-15 09:21:17 · 5 answers · asked by jayne beal 3 in Physics

2007-01-15 09:21:08 · 12 answers · asked by ansgran 1 in Zoology

can someone show me step by step how to solve this by completing the square:

2x^2 - 7x - 15 = 0

2007-01-15 09:17:31 · 9 answers · asked by Zac 2 in Mathematics

i know it means that the voltages are different, but i dont really get it. A bird can stand on a wire thats has really high voltages and not get shocked because it has potential difference. what does that mean? does the bird has the same voltage as the wires?

2007-01-15 09:16:00 · 4 answers · asked by sdgfi;ok 2 in Physics

2007-01-15 09:15:49 · 6 answers · asked by horsegirl7800 1 in Chemistry