Science & Mathematics - 7 October 2007

2007-10-07 11:12:51 · 3 answers · asked by andersona39 1 in Earth Sciences & Geology

2007-10-07 11:07:21 · 6 answers · asked by Anonymous in Mathematics

How do you calculate the frequency of light when you're given the wavelength but not the speed? I know the equation for frequency is speed divided by wavelength, so I don't see how to do it without the speed part :P

Any help earns my undying love, I'm getting desperate. :D

2007-10-07 10:59:37 · 4 answers · asked by Anonymous in Chemistry

2007-10-07 10:59:14 · 1 answers · asked by Anonymous in Other - Science

In science class, my teacher told us that nuclear fusion in the sun occurred in the core. He said, "Nuclear fusion in the case of the sun is when two hydrogen protons smash together to create deuterium, which has one neutron. Then the deuterium atom smashes together with another hydrogen proton to make Helium-3. Then two Helium-3 smash together to make a Helium-4."

First, is this correct?
Second, can nuclear fusion in the sun still occur with a hydrogen proton and a hydrogen neutron? Will it emit as much energy?


Please keep in mind that I'm an eighth grader, and that the explanation was for eighth graders to comprehend.

2007-10-07 10:57:01 · 4 answers · asked by Anonymous in Physics

I don't get this at all... Please help! http://img29.picoodle.com/img/img29/9/10/7/f_pg2001m_3879c12.jpg

2007-10-07 10:55:35 · 5 answers · asked by vwmanxter 2 in Mathematics

and transmit the power back to earth like Radio waves etc.

2007-10-07 10:53:09 · 15 answers · asked by Chris 5 in Astronomy & Space

what is the slope of the line y=-7x+6

2007-10-07 10:50:47 · 4 answers · asked by beth 1 in Mathematics

2007-10-07 10:49:27 · 1 answers · asked by Anonymous in Biology

2007-10-07 10:48:48 · 1 answers · asked by king of soccer 1 in Chemistry

Can you give an example please, on how it would be easier than writing the whole number?

2007-10-07 10:47:50 · 2 answers · asked by Anonymous in Mathematics

We keep finding these spiders in our home, there are alot of them, i personally am afraid of spiders, the fact that thier in my house creeps me out, i know there will never be a home completely rid of them, but i would like to know what they are, for my comfort, i have a small child in the house, and i dont want him to get bit!


I know the photos aren't very good, but i couldnt get the damn thing to focus on it!!

http://www.flickr.com/photos/14704562@N06/1509400264/

http://www.flickr.com/photos/14704562@N06/1508542967/

http://www.flickr.com/photos/14704562@N06/1508542835/in/photostream/

http://www.flickr.com/photos/14704562@N06/1509399858/in/photostream/

2007-10-07 10:43:32 · 4 answers · asked by Anonymous in Zoology

and why arent we feeling sick and dizzy and keep falling over being drunk doesnt count

2007-10-07 10:41:51 · 20 answers · asked by flowersinthewind 5 in Physics

find a vector with magnitude sqrt(10) in the direction of v = <-1,1>.

How am i supposed to solve this problem? please be detailistic with your answers.

2007-10-07 10:40:52 · 2 answers · asked by Anonymous in Mathematics

The heat energy required to melt 1.00 g of ice at 0°C is 333 J. If one ice cube has a mass of 57.0 g, and a tray contains 16 ice cubes, what quantity of energy is required to melt a tray of ice cubes to form liquid water at 0°C?

2007-10-07 10:39:51 · 2 answers · asked by beeboroachgoingon197 1 in Chemistry

We bought this at a farmers market but don't know what it is.

http://img516.imageshack.us/my.php?image=img1982ql7.jpg

It looks like a combination between a watermelon and a pumpkin.
What is it called?

2007-10-07 10:39:04 · 2 answers · asked by Steve H 2 in Biology

hello,

for science my teacher said to create a superhero using either red blood cells, white blood cells, muscle cells,or bone cells. Well i neep some help. It needs the following.....

name of specialized cell, the function,a name of the superhero, explanation of special abilities and featured that it has to do it's job.

if you can help thanks i won't copy i just need some ideas

2007-10-07 10:33:51 · 3 answers · asked by buddy dog 3 in Other - Science

Can someone please tell me what the oxidations numbers are for the following?

Cl in CCl4 H in NH3
P in P2O5 Na in Na3PO4


for Cl I got ....4
for P I got ..... 5
for H I got.... 1
for Na I'm getting 3.667 but it's not possible for decimal so would it be +1 ??

Please help? I have 30 min for this question... it's now 5:30 pm here so please help.

2007-10-07 10:31:38 · 2 answers · asked by Student 1 in Chemistry

My husband and I do alot of adventurous hiking and thankfully we have never had any accidents or gotten lost in the mountains but, if for some reason we were stranded in the mountains with no food, does anyone know of any educational websites where we can find pictures and names of plants that are edible and also survival tips?

2007-10-07 10:30:03 · 3 answers · asked by Victoria 1 in Botany

A 6.00% NaOH solution by mass has a density of 1.054 g/mL. What is the minimum molarity of an HCl(aq) solution that can be used to titrate a 2.00 mL sample of the NaOH(aq) if the titration is to be accomplished without having to refill a 50.00 mL buret used in the titration?

2007-10-07 10:29:03 · 2 answers · asked by jap 1 in Chemistry

1-Sin(theta) / 1+Sin(theta) = Tan(theta) + 1/ Cos(theta)

prove that one side is equal to another!!

2007-10-07 10:28:15 · 2 answers · asked by Anonymous in Mathematics

2007-10-07 10:21:27 · 6 answers · asked by . 1 in Mathematics

I am looking for a heat safe type of material regardless of plactic or fabirc.. that can be used in an invention or project.. please advise....

2007-10-07 10:20:24 · 2 answers · asked by alanin28 1 in Engineering

2007-10-07 10:18:31 · 2 answers · asked by Anonymous in Mathematics

find the domain and rage of this funtion. The function that assigns to each postiive integer its largest decimal digit.

2007-10-07 10:18:13 · 2 answers · asked by joeish 1 in Mathematics

A generator rotating at 100rpm makes 1.24V. What will the output be at 250rpm? I can't seem to use any of my equations to figure this out. Which one do you use?

2007-10-07 10:14:19 · 1 answers · asked by Stumped 1 in Physics

8x / ( x^2 -121) feet

(x + 11) / 9x^3 feet

2007-10-07 10:13:47 · 6 answers · asked by mommawe'regoingtohell 1 in Mathematics

2007-10-07 10:13:01 · 17 answers · asked by butterfliez2002 5 in Astronomy & Space

from those in the Northern Hemisphere? In detail please :D

2007-10-07 10:06:58 · 2 answers · asked by R S 1 in Earth Sciences & Geology

I heard that a forensic science degree is bad if you plan on working as a forensic chemist and that I should get a chemistry degree instead? Is that true and why or why not? Thanks. If I end up getting a chemsitry degree what other options of work are available?

2007-10-07 10:00:53 · 6 answers · asked by amgtt_18 2 in Chemistry