Science & Mathematics - 1 November 2007

2007-11-01 09:11:39 · 10 answers · asked by kiera.james 1 in Mathematics

Tidal forces create the oceanic tide of Earth's oceans, where the attracting bodies are the Moon and the Sun. Since the oceans' mass is much larger than the fluids running through our bodies, is it possible that they may affect even in a tiny way our own fluids???

2007-11-01 09:09:40 · 9 answers · asked by Rinoa Heartily 1 in Astronomy & Space

from the addition of 0.040 moles of HNO3 to a buffer made by combining 0.500 L of 0.260 M HC3H5O2 ( use Ka = 1.30 x 10 -5 ) and 0.500 L of 0.520 M

2007-11-01 09:09:08 · 1 answers · asked by Anonymous in Chemistry

Where Can I Buy A Star And How Much x

2007-11-01 09:08:18 · 9 answers · asked by JuicyBanna<3 1 in Astronomy & Space

what is this new law in effect on Nov 4th?

2007-11-01 09:07:36 · 2 answers · asked by Anonymous in Astronomy & Space

2007-11-01 09:04:52 · 5 answers · asked by Alexander 6 in Physics

2007-11-01 09:03:02 · 3 answers · asked by Anonymous in Geography

i want to add TAPS if they have myspace

2007-11-01 09:02:30 · 3 answers · asked by pittsburgh_dude_20 1 in Paranormal Phenomena

2007-11-01 09:00:48 · 6 answers · asked by Mary 1 in Chemistry

find all solutions in the range 0< x < (PI)

cos2x - cos4x =sin x

giving all the solutions in (PI) radians

Im really stuk on this Q...if ny one can solve this plz could u explain it aswell..thanks.

2007-11-01 08:59:41 · 1 answers · asked by clueless 1 in Mathematics

We had a earthquake tuesday night..i didnt feel it cuz i was driving but I heard that there was gnna be more soon?

2007-11-01 08:59:29 · 1 answers · asked by Anonymous in Earth Sciences & Geology

How many miles out to the horizon can we see? Please answer with your source.

2007-11-01 08:57:41 · 4 answers · asked by ohio756 1 in Geography

The temperature for the past 8 hours has been changing at the rate of -1.5 degrees each hour. The meterorologist predcts that the temperature will continue changing like this for the next 6 hours. The present reading is 0 degrees.

a) what was the temperature reading 7 hours ago?

b) what temperature is predicted for 6 hours from now?

c) when was the temperature 6 degrees?

d) when is the temperature expected to be -8 degrees?


[this is my younger brothers homework and i cant figure out exactly what it's asking, can someone help me?]

2007-11-01 08:57:23 · 4 answers · asked by juiicybabiieex3 1 in Mathematics

A 1310 kg car drives up a hill that is 16.5 m high. During the drive, two nonconservative forces do work on the car: (i) the force of friction, and (ii) the force generated by the car's engine. The work done by friction is -3.21 x 10^5 J; the work done by the engine is +6.33 x 10^5 J. Find the change in the car's kinetic energy from the bottom of the hill to the top of the hill.



Thanks so much for your help!!! God Bless!!

2007-11-01 08:56:51 · 3 answers · asked by PaNaSoNiCeDgE 1 in Physics

I'm in Matlab.
I have written a script that , for many times, trains a neural network.Unfortunately every times the comand "train" (for training neural network) display a figure.
The problem however is this: how can I avoid that matlab displays many figure ? I don't want one figure (this simple with "hold on"), I WANT NO FIGURES?
Thanks , best regard

2007-11-01 08:53:49 · 2 answers · asked by thiusthius 1 in Mathematics

A Pteri with a light appetite could not finish his Rainbow Melt Pizza. In fact, he could only eat exactly half of it.

If the diameter of the pizza was 50cm, and the half-pizza was a perfect semicircle, what is the area of the smallest square box, in square centimetres, that could contain the half pizza? Please disregard the thickness of the box, round to the nearest whole number, and please only submit a number for your answer.

2007-11-01 08:52:14 · 3 answers · asked by kelly_h@verizon.net 1 in Mathematics

i need it for a presentation if anybody can post a link it would helpful

Don't tell me to go look for it on google or something because i will report you.

2007-11-01 08:51:16 · 1 answers · asked by tamiyastar 2 in Earth Sciences & Geology

the formula for this problem is J=FavgT i just don't know how to plug in the numbers and units THANKS!

2007-11-01 08:48:30 · 2 answers · asked by Anonymous in Physics

The volume occupied by 5g NEON is ______ than the volume occupied by 2g HYDROGEN.

By the way, I want someone who actually knows this, not someone who just assumes that as 5g is a bigger amount it must be that one, k?

2007-11-01 08:43:58 · 5 answers · asked by Anonymous in Chemistry

If I have AgNO3 + Na2CO3 and I am asked to give the NET IONIC EQUATION - what is different than if I would just give a regular equation? Do I simply switch NO3- and CO3(2-) from one element (Ag to Na) to another? Will this be the same when mixing Pb(NO3)2 and NaCl. And mixing Sb(OH)3 and Na2S. Also - what does it mean when they say you will have a double displacement reaction?? thank you!

2007-11-01 08:39:21 · 2 answers · asked by confusedchemist 1 in Chemistry

why is bat poo called guano? (I can't spell it but I tried...)

2007-11-01 08:39:03 · 4 answers · asked by Lola 5 in Zoology

Physics Homework Help, Best answer will be given.?
In the Netherlands a dike, holding back the sea from a town below sea level, springs a leak 3.8 m below the water surface. If the area of the hole in the dike is 1.2 cm2, what force must the Dutch boy exert to save the town? (For the density of sea water use the value 1025 kg/m3.)

Have tried a few things but none worked, please help!

2007-11-01 08:37:23 · 1 answers · asked by burning_ice_73 2 in Physics

What is the average pressure on the soles of the feet of a standing 89-kg person due to the contact force with the floor? Each foot has a surface area of 0.021 m2.

This has been on here before but the answer was not working for me. If you could help me out that would be great.

Also, the answer is expressed in kPa.

2007-11-01 08:35:50 · 1 answers · asked by burning_ice_73 2 in Physics

An aluminum cylinder weighs 1.01 N. When this same cylinder is completely submerged in alcohol, the volume of the displaced alcohol is 3.86 × 10-5 m3. The apparent weight of the cylinder when completely submerged is 0.731 N. What is the specific gravity of the alcohol?

2007-11-01 08:35:43 · 2 answers · asked by Bob P 1 in Physics

2007-11-01 08:34:02 · 1 answers · asked by dr_atheer87 1 in Medicine

2007-11-01 08:33:45 · 14 answers · asked by nadia a 1 in Geography

T(x,yz)=25.67+1.63sin(0.01x^2yz)+3.11cos(0.02xy) degrees celcius

If a body starts at the point (5,5,5) and flies toward the origin (0,0,0). What's the rate of change of the temperature at the beginning of its flight?

2007-11-01 08:32:53 · 2 answers · asked by Nomad 1 in Mathematics

For instance Clorox is clorine. Baking soda is Sodium Bicarbonate ect.
I sometimes wish to acquire the chemicals quickly, but dont know what brand of product or name to purchase. The product manufacture does not always state what is in the product, as they are required for food products.

2007-11-01 08:28:33 · 3 answers · asked by mixmaster2 3 in Chemistry

Im having a little trouble doing it, could anyone help me? Argh, i mean i know all the steps but this tricks me all the time lol

for Example:

3x-7=4x-2
+7 +7
3x=4x-9
-4 -4
-1x=-9
would it be x=-9 or x=9?

2007-11-01 08:27:30 · 10 answers · asked by FinalThought182 4 in Mathematics

Describe 3 different kinds of seed dispersal.

2007-11-01 08:24:21 · 7 answers · asked by Angel M 2 in Botany