Science & Mathematics - 11 August 2007

The first is how many nuclear bombs are on the planet right now, i hear it was 60,000 but i'm not sure,the second if you add all the nuclear bombs up to one singer bomb how many megatons would it be.

2007-08-11 15:03:00 · 1 answers · asked by carlos sims 2 in Physics

Coasting from rest down a certain hill, whose slope is variable, I reach a speed of 18.02 m/s at the bottom. If I coast from rest down the second half of the hill I reach a speed of 15 m/s. Ignoring the effects of air resistance and friction:

How fast would I therefore be going if I coasted from rest down the first half of the hill?
How high would I have to climb from the halfway point reach the top?

2007-08-11 15:01:11 · 2 answers · asked by benzene boy 1 in Physics

This question is regarding the appliances certified by ENERGY STAR. Even if they are turned off but they are plugged to the electrical source, do they still continue to use up electricity, if they do is it same compared to when they are turned on and under full use?

2007-08-11 15:00:16 · 6 answers · asked by Anonymous in Engineering

2007-08-11 15:00:14 · 2 answers · asked by wenshidi 4 in Earth Sciences & Geology

i live on northern texas and i was wondering what might be the best spot to see the meteor shower

2007-08-11 14:56:38 · 3 answers · asked by lunar_rainefall 1 in Astronomy & Space

Hi i would like to see the Meteor does anyone know when and what direction? I am in Oregon.

2007-08-11 14:56:36 · 1 answers · asked by jjdigitalphotos 1 in Astronomy & Space

Don't shoot this down as a stupid question. Yes, I know they are out mid august every year, but last year they continued after the main one for a while.
My main question is, will there still be some meteors next weekend? I have an event to be at where it would be nice to go see them with my group.

2007-08-11 14:56:16 · 1 answers · asked by Jordyn 2 in Astronomy & Space

2007-08-11 14:55:39 · 1 answers · asked by toria 1 in Astronomy & Space

Also, when is the last day to see the shower? Tonight?

2007-08-11 14:53:36 · 1 answers · asked by Berga 2 in Astronomy & Space

2007-08-11 14:52:55 · 4 answers · asked by Anonymous in Astronomy & Space

2007-08-11 14:52:21 · 7 answers · asked by Anonymous in Astronomy & Space

2007-08-11 14:52:19 · 12 answers · asked by Virtuous Woman 1 in Mathematics

2007-08-11 14:51:44 · 5 answers · asked by andres m. 1 in Astronomy & Space

Don't know if size is the right word.
[ 2 -1 6] + [ -4 5]
[ 3 0 -9] [ 7 5]

2007-08-11 14:51:00 · 5 answers · asked by Rooster 2 in Mathematics

You have been hired to check the technical correctness of an upcoming TV mystery, "Mari Mar in Space". The mystery takes place in the space shuttle. In one scene, the astronaut Mari Mar’s safety line is sabotaged while she is on a space walk, so she is no longer connected to the space shuttle. She checks and finds that her thruster pack has also been damaged and no longer works. She is 200 meters from the shuttle and moving with it. That is, she is not moving with respect to the shuttle. There she is drifting in space with only 4 minutes of air remaining. To get back to the shuttle, she decides to unstrap her 10-kg tool kit and throw it away with all her strength, so that it has speed of 8 m/s. In the script, she survives, but is this correct? Her mass, including space suit, is 80 kg.

Pls show all necessary calculations with explanations pls, best answers gets 10 points...

2007-08-11 14:49:37 · 2 answers · asked by Sammy Baby 1 in Physics

You have been hired to check the technical correctness of an upcoming TV mystery, Mari Mar in Space. The mystery takes place in the space shuttle. In one scene, the astronaut Mari Mar’s safety line is sabotaged while she is on a space walk, so she is no longer connected to the space shuttle. She checks and finds that her thruster pack has also been damaged and no longer works. She is 200 meters from the shuttle and moving with it. That is, she is not moving with respect to the shuttle. There she is drifting in space with only 4 minutes of air remaining. To get back to the shuttle, she decides to unstrap her 10-kg tool kit and throw it away with all her strength, so that it has speed of 8 m/s. In the script, she survives, but is this correct? Her mass, including space suit, is 80 kg.

Pls show all necessary calculations with explanations pls, best answers gets 10 points...

2007-08-11 14:49:10 · 1 answers · asked by Sammy Baby 1 in Physics

2007-08-11 14:47:24 · 4 answers · asked by thehulk 1 in Astronomy & Space

Why is it that on high voltage electrical equipment, the blobs of solder should be rounded and smooth??

2007-08-11 14:44:39 · 2 answers · asked by sdjfhdkjsfgkuae 2 in Physics

When is the Meteor Shower and What Time?
Also Can you see it from anywhere?

2007-08-11 14:43:30 · 4 answers · asked by Anonymous in Astronomy & Space

Hi. I need some help with this question. Could you explain how its done? It might be easier if you write it down properly but this is the question.

"Solve 1-sin^2 (theta) =1/2 for theta between or equal to 0 and 360 degrees"

Thanks

2007-08-11 14:42:44 · 5 answers · asked by Anonymous in Mathematics

I never saw a meteor shower before and I was just wondering if it would just happen to visit Chicago or other cities in the Chicago area!?

2007-08-11 14:42:02 · 1 answers · asked by *|v.ball.beast|* 1 in Astronomy & Space

2007-08-11 14:41:06 · 2 answers · asked by tmu321 1 in Earth Sciences & Geology

Sounds like a serious slit has been seen on the underside of the space shuttle.

2007-08-11 14:39:44 · 3 answers · asked by The Father of All Neocons 4 in Astronomy & Space

I've never seen one. Just would like to watch them, alone, by myself, and make a wish to find that special someone =)

2007-08-11 14:38:42 · 3 answers · asked by dBug 2 in Astronomy & Space

I live in Florida and am able to go to remote areas that enable me to clearly and easily see the stars. I really enjoy watching the stars and try to do it as often as I can. I know that there are several meteor showers during the year and would love to see one some time soon but I have no idea when the next one will be.

2007-08-11 14:38:30 · 3 answers · asked by Sky J 1 in Astronomy & Space

please help me to find a vedio show of blood analysis and stool analysis from the internet.
or arabic books about that

2007-08-11 14:37:01 · 1 answers · asked by salah_salah531 1 in Engineering

2007-08-11 14:36:04 · 5 answers · asked by David 1 in Astronomy & Space

i live in virginia

2007-08-11 14:35:27 · 4 answers · asked by ABC 3 in Astronomy & Space

2007-08-11 14:34:46 · 3 answers · asked by Anonymous in Astronomy & Space

2007-08-11 14:33:24 · 3 answers · asked by sneezy755 1 in Astronomy & Space