Science & Mathematics - 31 January 2007

2007-01-31 12:00:32 · 0 answers · asked by Anonymous in Chemistry

what is the general solution of the differential equation

dy/dx = sin(y-x)




help me please
thanks

2007-01-31 11:59:37 · 3 answers · asked by Anonymous in Mathematics

heres the question- A 4 digit # is divisible by 5 but not 10. The tens digit is greater than 4 & is a power of 3. The hundreds digit is greater than 4 & is a power of 2. The thousands digit is less than 4 & is a power of 2 & 3. What is the #?

2007-01-31 11:59:19 · 5 answers · asked by . 2 in Mathematics

2007-01-31 11:59:02 · 6 answers · asked by blue october 3 in Weather

For some reason, I just cannot get this problem. Well, here is the scenario:

A 20kg block is placed on a ramp of 22degrees. The block has been shot at a speed of 3 m/s from the bottom of the ramp. Assuming that the ramp is frictionless, how far up will the block go? And how long will it take for the block to return back to the "shooting" point?

Here is a picture of what the scenario looks like:

http://i91.photobucket.com/albums/k285/happygolucky2442/Aphunker.jpg

Thanks in advance, best answer to the person with the best explanation!

2007-01-31 11:58:47 · 6 answers · asked by Jer G 3 in Physics

5a -12 over a^2 - 8a + 15 minus 3a - 2 over a^2 - 8a + 15

One other:
How do you simplify 18x over 2x - 5 ?

2007-01-31 11:58:15 · 3 answers · asked by Anonymous in Mathematics

A homework question that I CANNOT figure out..



How do the areas of two parallelograms compare when the dimensions of one are 3 times the dimensions of the other?

2007-01-31 11:57:10 · 3 answers · asked by Roxanne-Chan 2 in Mathematics

The line has an x-intercept of 6 and a y-intercept of 4. Can someone help walk me through this? thanks in advance

2007-01-31 11:54:32 · 3 answers · asked by Viewtiful Bro 2 in Mathematics

There were 6 purple socks and four oranges socks ina drawer. Zucky picked one sock without looking and then another without looking. What is the probability that he picked 2 purple socks?



There are 10 boxes in a grab bag. The boxes are identical except that 7 of them contain $20 bills. A contest winner gets to pick two boxes from the grab bag. What is the probability of getting two $20 bills?

2007-01-31 11:51:42 · 17 answers · asked by Pink*advice 2 in Mathematics

Some cosmoligists are apparently on the verge of proving they exist in the same space we live in. Seems hard to believe. Anybody else been keeping up with this?

2007-01-31 11:51:40 · 8 answers · asked by believer 3 in Astronomy & Space

the average (arithmetic mean) of a and b is 10, whereas the average of b and 10 is c/2. What is the average of a and c.

2007-01-31 11:51:11 · 4 answers · asked by Acewall 1 in Mathematics

What equation is used to calculate the Fn or normal force acting on an object that is on a slope?

2007-01-31 11:50:17 · 7 answers · asked by Anonymous in Physics

2007-01-31 11:49:57 · 9 answers · asked by Madissen F 1 in Geography

I need a bit of help with my pre calc work.. I AM NOT a teenager looking for answers, but 42 year old college student that is stuck on completeing squares and clearly stating radius and center. I have done some, but others have a twist to them that I can't get moving on. If you think you can help... my yahoo ID is pink9364.. THanks

2007-01-31 11:49:37 · 1 answers · asked by pink9364 5 in Mathematics

Draw a diagram to support each of the following conjectures and then draw a counterexample.

The altitude from a vertex to the opposite side of a triangle lies within the triangle!!!

2007-01-31 11:49:25 · 1 answers · asked by Nicole C 2 in Mathematics

How would I figure out the quadrant it belongs in, for example
sin 1/3
tan 3/4
cos -15
etc etc....


Thanks
Narumi

2007-01-31 11:49:04 · 1 answers · asked by n4rumi 2 in Mathematics

-12xy^4 / 8xy^2...............is the answer 2x^2/3 ?

2007-01-31 11:48:45 · 7 answers · asked by Anonymous in Mathematics

Can you tell me how or the answer to the AV Expression?
|-4||3|-|-5|

2007-01-31 11:48:34 · 6 answers · asked by Michael U 1 in Mathematics

it's a fraction of the price at Walmart.

2007-01-31 11:46:07 · 4 answers · asked by Bill Spry 4 in Medicine

2007-01-31 11:44:29 · 3 answers · asked by bigbadbutters05 2 in Mathematics

Explain in terms of energy, why plant life is necessary in a forest food chain.

Huh?

2007-01-31 11:44:07 · 1 answers · asked by udienowslave90 1 in Biology

2007-01-31 11:43:36 · 4 answers · asked by Lightning 1 in Chemistry

Find 5 different whole numbers, all less than 9, such that the sum of 3 of them equals the sum of the other 2, and such that the sum of the squares of the first 3 equal the sum of the squares of the other 2.

2007-01-31 11:43:34 · 3 answers · asked by Rahul 1 in Mathematics

What is the ultimate source of all energy on EArth in our solar system?
Well I figured the energy from the Sun. Solar Energy just want to make sure though

2007-01-31 11:43:09 · 1 answers · asked by udienowslave90 1 in Biology

2007-01-31 11:40:38 · 5 answers · asked by WHAT'S UP? 1 in Astronomy & Space

do u think its safe to take niacin pills and sonne 7 together? my boyfriend plans on doin that but i dont think thats healthy for him?

2007-01-31 11:39:30 · 4 answers · asked by SEXCITAZ23 2 in Medicine

3.A drug manufacturing company wants to manufacture a capsule that contains a spherical pill inside. The diameter of the pill is 4mm and the capsule is cylindrical, with hemispheres on either end. The length of the capsule between the two hemispheres is 10mm. Describe how we could find the exact volume the capsule will hold, excluding the volume of the pill. What is the value that you get from your calculation? Why is it important for us to be able to determine the exact volume of that capsule?

2007-01-31 11:39:28 · 3 answers · asked by Anonymous in Mathematics

2007-01-31 11:38:51 · 8 answers · asked by victorschool1 5 in Geography

2007-01-31 11:37:58 · 11 answers · asked by Anonymous in Mathematics

2007-01-31 11:37:54 · 8 answers · asked by devan d 1 in Astronomy & Space