Science & Mathematics - 6 December 2007

(this ^ means to the power or expoinent whatever)

-6a^-2
-------------(over)
p^5

how is that not equal to

1
----------------(over)
6a^2q^5

2007-12-06 14:45:17 · 9 answers · asked by browneyedchick679 3 in Mathematics

someone said that brains are divided up? is it true also that we use only 10% of our brain?

2007-12-06 14:41:58 · 30 answers · asked by Anonymous in Mathematics

We've started Circular Motion in physics but I don't understand the concept even after reading the book.please can someone explain how to do this problem?

The lazy susan has been rotating for some time in this problem at a constant angular frequency of 2 sec^-1. At this moment the position of A and B are given as: r(a)=.5 m @ 180 (degrees) and r(b)=.25 m @ 270 (degrees)
(a) At this moment what are the velocities of cans A and B?
can A ___m/s @ ___degrees
can B ___m/s @ ___degrees
(b) At this moment what are the accelerations of cans A and B?
can A ___m/s^2 @ ____degrees
can B ___m/s^2 @ ____degrees
(c) What is the period and frequency for can B?
T= ___sec
f= ___sec^-1
(d) In one second what will be the position, velocity, and acceleration of can B?
r= ___m @ ___degrees
v= ___m/s @ ___degrees
a= ___m/s^2 @ ___degrees
Also, please please show all work with all equations used
Thanks a lot for your help =

2007-12-06 14:40:48 · 2 answers · asked by Kamal 2 in Physics

I dont really know how to do these percent tables but I tried and I still dont get it, someone please help me im trying to do all my home work to get good grades at school and I dont want to repeat 9th grade.

100%= 70
10%= _
1%=_
50%=_
17%=_
30%=_
4%=_
300%=_

2007-12-06 14:40:01 · 6 answers · asked by Jewelz 2 in Mathematics

science stuff

2007-12-06 14:38:00 · 3 answers · asked by rosie cheeks 2 in Physics

Do you believe the male-female principle, as in the original creation, is not the same idea as a comparison between men and women. Anyone know any more on all this?

2007-12-06 14:37:19 · 4 answers · asked by ZORRO 3 in Biology

2007-12-06 14:33:02 · 5 answers · asked by Mcky R 2 in Physics

i know its somthing like (x )(x ) help!!!!!!!!!!!!!

2007-12-06 14:31:28 · 6 answers · asked by andrew n 1 in Mathematics

i need major help with it

2007-12-06 14:30:37 · 4 answers · asked by vero 1 in Mathematics

x^3 - (13x^2)/4 + x = -3

I am totally confused, I get it down to 4x^3 - 52x^2 + 4x +12 = 0 and I don't even know if that is right.

2007-12-06 14:30:36 · 2 answers · asked by kelly w 1 in Mathematics

If a leaf is to maintain a temperature of 50°C (reasonable for a leaf), it must lose 250 W/m2 by transpiration (evaporative heat loss). Note that the leaf also loses heat by radiation, but we will neglect this. How much water is lost after 1 h through transpiration only? The area of the leaf is 0.006 m2.

Grams.

i thought it was 16.2 but it wasnt right

2007-12-06 14:29:36 · 1 answers · asked by Anonymous in Physics

i know it's hard to draw dots and such on the computer so can anyone at least just explain how you determine where to place dots, and how you determine when something requires a double or triple bond, i haven't gotten too far into learning about lewis dots so it's just the basics i need to figure out.

this is all i know in general:

-carbon is always the central atom
-all halides are single bonded with other atoms & found on outside of central atom
-nitrogen is most likely to form a triple bond with other elements
-oxygen form a double or single bond
-all elements, except hydrogen, need to fill 8 electrons

man...you have no idea how helpful it'd be if anyone could explain any other facts to make a lewis dot diagram.

2007-12-06 14:25:18 · 3 answers · asked by E 2 in Chemistry

A satellite experiences a gravitiational force of 228N at an altitude of 4.0 x 10^7m above the earth. What is the mass of the satellite?

I do 228 = GMm/(4x10^7 x 6x10^6)^2 (and solving for m) and that's not the right answer.... so what should I be doing?

2007-12-06 14:23:53 · 2 answers · asked by Maike Tater 2 in Physics

I really dont know how to do this and its stressing me out please help me!!!
a. 50% of 600
b. 25% of 600
c. 20% of 600
d. 30% of 600
e. 40% of 600

2007-12-06 14:23:29 · 30 answers · asked by Jewelz 2 in Mathematics

I'll give a shiny new Best Answer to the first person to give the answer.

2007-12-06 14:22:24 · 2 answers · asked by Anonymous in Medicine

2007-12-06 14:21:58 · 5 answers · asked by soccerbreeee03 2 in Mathematics

2007-12-06 14:17:49 · 13 answers · asked by Anonymous in Geography

1) The Andes Mountains formed when:
a) two continental plates pushed up against each other
b) two continental plates separated from each other (e.g., mid-oceanic trench)
c) magma rose through the crust and emerged at the surface
d) a transverse fault moved
e) none of the above

2) The Himalayas were formed due to:
a) plate movements, leading to the breakup of Pangea
b) the magnetic reversal of the Earth caused tectonic activity along the Eurasian Plate
c) extrusive igneous rocks formed by the molten material in the Earth's core
d) collision of the Indian Subcontinent with Asia causing the uplift of the terrain
e) both a) and d) are correct

Thank you in advance.

2007-12-06 14:16:16 · 7 answers · asked by Anonymous in Geography

the furthest distance I every traveled was to Key West in Florida. I'm not sure how many miles away it was. I'll look it up on map quest or something!

2007-12-06 14:13:29 · 10 answers · asked by mit 4 in Geography

this is very important, so please help mee! i do not have enough time to perform an experiment to figure it out. please help!!!! )):

2007-12-06 14:01:59 · 4 answers · asked by horselover 1 in Other - Science

Example: Cats are related to Lions / Tigers / etc.
Dogs are related to Coyotes / Wolves / Foxes / etc.
Elephants are related to Hippos.

2007-12-06 14:00:42 · 3 answers · asked by Anonymous in Zoology

Integration of xcosx /(sin^2 X)

2007-12-06 13:56:18 · 2 answers · asked by adnan_hatim 1 in Mathematics

2007-12-06 13:55:26 · 22 answers · asked by Anonymous in Geography

2007-12-06 13:55:21 · 2 answers · asked by Anonymous in Mathematics

An ideal gas system undergoes an isovolumetric process in which 20 J of energy is added as heat to the gas. What is the change in the system’s internal energy?

2007-12-06 13:54:59 · 1 answers · asked by thisisjakethomas 1 in Physics

Integrate x multiply by (tan^2 2x)

2007-12-06 13:53:17 · 2 answers · asked by adnan_hatim 1 in Mathematics

2007-12-06 13:53:09 · 3 answers · asked by fade 3 in Physics

If it was possible of course, would it reflect enough light to lower temps slightly without totally screwing things up?

2007-12-06 13:52:47 · 4 answers · asked by Anonymous in Earth Sciences & Geology

I read an article a while back that scientists say plesiosaurs are not related to land dinosaurs and that they are more related to either turtles or whales but I forgot which one it was... someone know?

2007-12-06 13:42:17 · 3 answers · asked by Anonymous in Zoology

okay im solving linear systems with combinations by multiplying first! theres 9x-3z=20, 3x-6z=2 ......please solve!!!!

2007-12-06 13:41:59 · 6 answers · asked by questions123 3 in Mathematics