Science & Mathematics - 27 January 2007

the trigger would have to be pressure sensative so that when it becomes a given weight from the atmospheric pressure the bomb explodes. suppose we built a really big atomic bomb, bigger than ever made. and just launched it into a huge ball of gas consisting of mostly hydrogen? what happens when an H-bomb goes off inside a big ball of hydrogen?
can we start a chain fussion reaction causing jupiter to become a new tiny star? wouldn't that be cool?

2007-01-27 17:14:05 · 10 answers · asked by brandon 5 in Astronomy & Space

When my son come home from the school Fridai, he bring back the failing grade for test in mathematics in the pre algebre. He is senior in the high school, end he say he get strait E's and F's. He tell me E is for exelent end F is fantastik. I em disappoint in him when he bring test that say 0 on it, but I also cant solve eny of the problems. Some of problem say.

(1) If x+2y-x+3y is equal to 10 cents, what is the value of x in dollars?

(2) Mike is twice as old as Colin. In 3 years, he is still twice as old as Colin. How old is Mike?

(3) An electric train moves west at 90 mph into an east wind at 40 knots. What direction will the smoke blow?

(4) A pool is 9x30x12 feet. If 8 liters can drain per hour, at what point in time will ice be able to form in the pool given that the outside temperature is -500 degrees F?

(5) A box is twice as wide as it is high and three times its length. When creshed, how big will this box be?

Can anyone solve?

2007-01-27 17:13:35 · 11 answers · asked by Junichiro L 2 in Mathematics

(a)How much power does she expend? (b)What is her horsepower?

2007-01-27 17:13:34 · 1 answers · asked by Anonymous in Physics

Here are the rules:

sin(pi/15) = sin(2pi/5 - pi/3) = sin(pi/6 - pi/10)

sin(a-b) = sin(a)cos(b)-sin(b)cos(a)

sin(pi/10)=cos(2pi/5) = (√5 - 1)/4
cos(pi/6)=sin(pi/3) = √3/2
cos(pi/10)=sin(2pi/5) = √[(5 + √5)/8]
sin(pi/6)=cos(pi/3) = 1/2

Good luck. I am not able to do it.

Historically, this is a key part to the solution of Van Roomen's problem.

2007-01-27 17:08:54 · 3 answers · asked by larry_freeman2 1 in Mathematics

How about positron or neutron
what is inside electron
what is the material of electron

2007-01-27 17:04:44 · 9 answers · asked by Mohsen J 2 in Physics

The most common form of calcium has 20 protons, 20 neutrons, and 20 electrons. Which of the following elements would be an isotope of calcium?
a)an atom with 20 protons, 21 neutrons, and 20 electrons
b)an atom with 20 protons, 20 neutrons, and 18 electrons
c)an atom with 21 protons, 20 neutrons, and 21 electrons
d)all of the above
e) none of the above

2007-01-27 17:02:13 · 6 answers · asked by soccerjock 2 in Chemistry

2007-01-27 17:01:36 · 17 answers · asked by Anonymous in Earth Sciences & Geology

hauntings, ghosts, a poltergeist? odd smells, uncanny feelings? a ghost of a cat perhaps?

2007-01-27 17:00:49 · 19 answers · asked by Anonymous in Paranormal Phenomena

2007-01-27 16:56:29 · 11 answers · asked by vikram 1 in Zoology

what happens to the internal energy of water vapor in the air that condenses on the outside of a cold glass of water? Is work done or heat exchanged?

2007-01-27 16:50:16 · 3 answers · asked by TehEagle 1 in Physics

theres this guy i often see but i dont no him, but i think hes really cute so i try and smile at him, today he smiled back but also looked nervous i just want to no do you think many guys smile back to just be polite or does it means they are interested?

2007-01-27 16:46:35 · 4 answers · asked by amelie 1 in Geography

2007-01-27 16:45:19 · 1 answers · asked by herbie q 1 in Earth Sciences & Geology

In the adjacent squares shown, the vertices A,B, and C lie in a straight line. The value of x is: (what is the exact value?) Also, explain your answer briefly as well, thanks.


http://www.e-zgeometry.com/pow/pictures/24.gif

2007-01-27 16:44:20 · 9 answers · asked by Chaotic 1 in Mathematics

2007-01-27 16:43:24 · 1 answers · asked by jay_npcil 1 in Astronomy & Space

One day I noticed that a piece of glass in my house did not cast a visible (to me) shadow, but my glasses did. I was wondering why.

2007-01-27 16:40:40 · 4 answers · asked by woaikonglong 3 in Other - Science

a)forms a covalent bond with another atom
b)becomes part of a molecule
c)is an ion
d)gains or loses a neutron
e)gains or loses a proton

2007-01-27 16:40:26 · 12 answers · asked by soccerjock 2 in Chemistry

Since water freezes at zero degree Celsius (or 32 degrees Fahrenheit), let's say I bring a thermo flask with water up to the roof of a 3 storey building during one cold day (say it's -20 degrees outside). I release one drop of water to the ground. Will the drop of water freeze as it falls? Or will it generate enough energy to stay as a liquid before it splats on the ground and then freeze?

2007-01-27 16:39:59 · 6 answers · asked by Lynn 2 in Chemistry

In other words, are all the clouds surrounding earth, if combined, larger than the moon? (My child wants to know.)

2007-01-27 16:39:45 · 7 answers · asked by kneelocked 1 in Astronomy & Space

echelon form & row echelon the differences?

2007-01-27 16:35:47 · 1 answers · asked by mitu 2 in Mathematics

I just took some phenergan and I read that it will f up a drug test and test positive for pot. I am getting tested next week. How many days do I need to wait. The phenergan was not prescribed to me but I took it for a tummy ache. If I document that I took it, will I be OK or will they really need a script for it?

I also take Ultram, Lisinopril, Buspar, Metformin all with prescriptions of my own.

What is phenergans half life or detectability timefram?

2007-01-27 16:32:57 · 1 answers · asked by Anonymous in Medicine

2007-01-27 16:30:59 · 1 answers · asked by glotnib 1 in Engineering

a large crate has hieght 2 meters, and its length is 3 times its width.
write an equation to describe the volume of the box in terms of its width.

plot your equation with point for widths from 0 to 10

describe the graph of your equation

would it make sence to choose negative values for w to find the volume of this crate?

state an equation whose graph would be a parabola. describe its line of symmetry

2007-01-27 16:30:48 · 1 answers · asked by moneyman$$ 2 in Mathematics

Consider a hypothetical atom with an atomic number of 4 and a net electronic charge of +1. It has 4 protons. How many neutrons does this atom have?

2007-01-27 16:30:38 · 8 answers · asked by soccerjock 2 in Chemistry

2007-01-27 16:30:27 · 2 answers · asked by Marvin T 1 in Astronomy & Space

2007-01-27 16:28:39 · 5 answers · asked by henry 1 in Engineering

e^(ax) = Ce^(bx)
ln ln
ax = bx * ln (Ce) ???

I'm trying to solve for X.

2007-01-27 16:25:51 · 2 answers · asked by RogerDodger 1 in Mathematics

2007-01-27 16:15:07 · 3 answers · asked by manu m 2 in Engineering

i want speciefic answer

2007-01-27 16:12:53 · 9 answers · asked by Bembem T 1 in Astronomy & Space

The holy quran says that the area near Jerusalem is "adna" which means either closest or lowest

2007-01-27 16:12:50 · 8 answers · asked by Saleh A 1 in Geography

2007-01-27 16:09:05 · 2 answers · asked by Richard H 2 in Biology