Science & Mathematics - 25 November 2007

My daughter works for $5.85 an hour, she had to work two shifts where she was told were time and a half. She wanted to know how much that was an hour. Thanks

2007-11-25 11:09:36 · 7 answers · asked by Anonymous in Mathematics

on land or at sea.

2007-11-25 11:08:33 · 19 answers · asked by @NGEL B@BY 7 in Zoology

2007-11-25 11:08:11 · 3 answers · asked by Anonymous in Biology

(9 - 7t)(7 - 6t + 8t {SQUARED})

2007-11-25 11:05:20 · 6 answers · asked by Micheala Cox 2 in Mathematics

If you compare their DNA, what similarities will you notice? If, say, you examine the daughter's DNA, will you be able to tell who the father is?

2007-11-25 11:04:16 · 3 answers · asked by beyondearthfiles 2 in Biology

I have to relate pictures like actual pictures of people, and stuff....someone playin soccer...etc. they can't be planned out. but the pictures have to relate to atleast one of these..
Dipole-dipole Forces
Compounds
Kinetic engergy (particle level)
Metalloids
Mixtures
Potential energy (particle level)
Adhesive forces
Cohesive forces

I have ideas for a couple....i just have to figure it out..but, do you have any ideas how any of these things could link to any sort of pictures? thank you. i'm not asking for answers, and this isn't due until december, i just want to start figuring things out....
and how would i be able to compare a body of pool water with hydrogen bonding??
and would sand be a good example of a mixture??

2007-11-25 11:03:45 · 1 answers · asked by mahbabesgrl 1 in Chemistry

i dont understand how
2SO2 + O2 ---> 2SO3
Wouldnt it be 4 if you were to add the o's?

or this

PCl + Cl2 = PCl5

how does this work??

2007-11-25 11:02:52 · 3 answers · asked by gypsy 3 in Mathematics

please help me understand this

2007-11-25 10:56:17 · 1 answers · asked by Olivia 1 in Botany

2007-11-25 10:55:10 · 3 answers · asked by Anonymous in Physics

The bottom of a flat-bottom aluminum boat has an area = 4 m2 and the mass of the boat is 65 kg. If two fishermen and their fishing gear with total mass of 375 kg are placed in the boat, how much lower will the boat ride in water? (water density = 1000 kg/m3)

2007-11-25 10:54:44 · 2 answers · asked by Zeezee 3 in Physics

Why are we getting such little rain in southern California nowadays? It's a little disturbing and I miss the occasional fall-winter rains here in So Cal. It used to rain a decent amount but now we're getting almost nothing.

2007-11-25 10:53:00 · 3 answers · asked by Armand N 1 in Weather

Please be as specific as you can.

2007-11-25 10:48:21 · 2 answers · asked by igul222 2 in Weather

2007-11-25 10:47:27 · 13 answers · asked by Anonymous in Mathematics

2007-11-25 10:45:06 · 8 answers · asked by lori c 2 in Mathematics

need help---human anatomy class

2007-11-25 10:41:03 · 18 answers · asked by gege05 1 in Biology

2007-11-25 10:38:21 · 2 answers · asked by Anonymous in Biology

How many Liters of HI would be produced from 25.0 Liters of I2 in a reaction with a sufficient amount of H2?
first I balance-
H2 + I2 = 2 HI
then ratio is 1 H2 + 1 I2 = 2 HI, so then the ratio is 2 HI - 1 I2
25.0 times 2 divided by 1 = 50.0 liters of HI ?

2007-11-25 10:32:19 · 1 answers · asked by Boo Radley 4 in Chemistry

a)it takes more energy to ionize the electron from n=3 than from the ground state.
b)the electron is further from the nucleus on average in the n=3 state than n=1 state.
c)the wavelength of light emitted if the electron drops from n=3 to n=2 is shorter than that from n=3 to n=1
d) the wavelength emitted when electron returns to ground state from n=3 will be the same as wavelength of light absorbed to get from n=1 to n=3
e)for n=3, the electron is in the first excited state

2007-11-25 10:30:29 · 4 answers · asked by KM 1 in Chemistry

If I have the question:

4x1 + 3x2 = 18
3x1 - x2 = 7

How would I solve it using matrices?

Note: the 1 and 2 aren't 'to the power', its to differentiate between two different variables.

2007-11-25 10:29:05 · 4 answers · asked by Al 2 in Mathematics

We have a wire of 1 m and we bend it in a shape of S. When I say "in shape of S" I mean by sides being verticals and horizontals not curvey sides.

Okay so Four sides of the shape of S are 22.22 cm and one side is 11.11 cm, making it 1 m. So how do I find the center of mass:

1) by hanging the configuration, S, from a string or hook.
2) by measuring the configuration, S, and calculating the Center of mass with formulas.

And one more thing the sides could be on any side it doesnt matter.

Thanks in advance

2007-11-25 10:28:59 · 1 answers · asked by Need help plz!!! 1 in Physics

No jokes plz Thanks

2007-11-25 10:28:48 · 7 answers · asked by sonia 1 in Zoology

does ever snowfall produce the same ratio of snow hight to water depth?

2007-11-25 10:27:10 · 2 answers · asked by no8907 3 in Weather

2007-11-25 10:26:31 · 5 answers · asked by Anonymous in Agriculture

What are a some good ideas to write an essay about this topic "Explain proportions as the Basis for the Straight Line and other Graphs"?

2007-11-25 10:26:22 · 1 answers · asked by you 1 in Mathematics

i have a reasonable understanding of space but always find myself trying to work out which way is what ...earth,moon galaxy (clockwise, anticlockwise-wise),if you know what i mean.

2007-11-25 10:25:13 · 11 answers · asked by triplepip 3 in Astronomy & Space

2007-11-25 10:18:42 · 6 answers · asked by Anonymous in Mathematics

A .04 kg bullet is fired into a .40 kg block of wood at rest. After impact the block slides 10 m before coming to rest. If coefficient of friction is .3, find the speed of the bullet before impact.

2007-11-25 10:17:29 · 1 answers · asked by Anonymous in Physics

(4y/y+2)+(-y/y+2)

2007-11-25 10:15:46 · 1 answers · asked by michael s 1 in Mathematics

2007-11-25 10:14:35 · 5 answers · asked by Jean-Francois 5 in Zoology

Solve for x: 5x(squared) - 10 = x (squared) + 90

2007-11-25 10:13:40 · 4 answers · asked by yo 1 in Mathematics