Science & Mathematics - 6 November 2006

If you could show how you got some of the work I would so greatly apretiate it. Thank you so much for all you do for me, Clint

2006-11-06 05:11:30 · 4 answers · asked by cetinnovations 1 in Chemistry

some is burning hot, some is still ice cold!

2006-11-06 05:09:08 · 193 answers · asked by Family Mediator 2 in Engineering

A retailer sold 36 out of 84 widgets. What percent was not sold? is it 40.32%?

2006-11-06 05:06:45 · 7 answers · asked by Anonymous in Mathematics

The problem is this: -(10-7x)

My first inclination was -70x but I believe that's wrong. Can anyone help?

2006-11-06 05:01:59 · 11 answers · asked by Anonymous in Mathematics

A proton, no matter how insignificant, must have some sort of weight which would reach infinity at the speed of light. Why does it not do this.

2006-11-06 05:01:15 · 10 answers · asked by Anonymous in Astronomy & Space

A flywheel in the shape of a solid cylinder with a radius of 0.499 m and mass of 10.1 kg can be brought to an angular speed of 5.88 rad/s in 0.531 s by a motor exerting a constant torque. After the motor is turned off, the flywheel makes 26.8 rev before coming to rest because of friction (which is assumed constant during rotation).

What percentate of the power generated by the motor is used to overcome friction?

2006-11-06 05:01:01 · 1 answers · asked by Dee 4 in Physics

I think it's the opposite of light energy, what are your thoughts?

2006-11-06 04:59:00 · 8 answers · asked by John H 3 in Astronomy & Space

2006-11-06 04:58:07 · 19 answers · asked by shrinivas m 1 in Earth Sciences & Geology

A bike tire with a radius of 0.30 m and a mass of 1.1 kg is rotating at 93.6 rad/s.

What torque is necessary to stop the tire in 1.7 s (in units of N . m)?

2006-11-06 04:56:14 · 4 answers · asked by Dee 4 in Physics

This is a linear programming problem:
maximize p = 3x + y subject to
2x - y <= 4
2x + 3y <= 12
y <= 3
Here,What does "p=3x+y" tell us?
Please give answer with explaination.

2006-11-06 04:52:22 · 2 answers · asked by star123 2 in Mathematics

I have a biology project to do and could use some help. The site or book you use would be helpful in addition to your answer.

2006-11-06 04:52:19 · 2 answers · asked by Gremple 2 in Botany

This idea occurred to me when I was studying for my exam. Imagine you survived a hellish ride through the Black hole, what will you find on the other side? A new universe? A white hole?...... Just wondering.

2006-11-06 04:49:11 · 18 answers · asked by Ahmed M 2 in Astronomy & Space

...it'sinteresting to me

2006-11-06 04:49:11 · 1 answers · asked by Narrator 3 in Physics

In a question, a pebble and a feather both have the same mass (and so the same weight), but the feather reaches terminal velocity quicker than the pebble. How would you explain that using Newton's Laws?

2006-11-06 04:46:33 · 3 answers · asked by lykastar 3 in Physics

2006-11-06 04:44:54 · 10 answers · asked by Jon 1 in Astronomy & Space

it is found in the cliff side of walton in the naze

2006-11-06 04:43:04 · 1 answers · asked by joseph a 1 in Geography

2006-11-06 04:43:00 · 14 answers · asked by Ahmed M 2 in Astronomy & Space

is it the Harvard cemetary . near Indian Hill ? road ?

2006-11-06 04:42:00 · 1 answers · asked by bill n 1 in Geography

2006-11-06 04:41:59 · 11 answers · asked by Anonymous in Botany

2006-11-06 04:41:42 · 4 answers · asked by Anonymous in Geography

So we worry about dirty bombs and nuclear bombs getting in the hands of terrorists, but at the same time send tanks loaded with depleted uranium shielding and ammo into iraq.

At the time we first sent them our viewpoint was the armour was so tough (due to the depleted uranium) that it would be a rare event to lose one. We had no idea that the IED's would be so big, that we are losing tanks like everything else.

I read on wiki that depleted uranium is use as a neutron reflector in making nuclear weapons. So, are we helping our enemy?

2006-11-06 04:41:14 · 6 answers · asked by Anonymous in Physics

a general person needed

2006-11-06 04:38:48 · 6 answers · asked by wayne f 1 in Astronomy & Space

Here is a physics thought experiment examining conservation of energy and EM propagation. In answering, please address how the experiment is resolved from a purely classical interpretation (i.e., how might Maxwell have answered this question?); and, how a QM interpretation might result in a different explanation? Here is the experiment. Let us arrange a coherent monochromatic light beam, e.g. a laser beam, to be split and directed along two paths. With repect to the light's wavelength, the paths are suitably arranged such that a half-cycle net time delay exists between them. These beams are then recombined downstream, so as to destructively interfere there. Question: where does the light energy "go"? Or, worded another way, what physical part of this experiment "gets hot"?

2006-11-06 04:35:39 · 6 answers · asked by Chapadmalal 5 in Physics

1) As far as I know, in the dinosaurs' days, it took 20 hours for one day and night to pass, which means that the Earth is slowing down!!!
2) As the sun burns and releases its potential energy, does it’s gravitational force weaken??

2006-11-06 04:35:03 · 2 answers · asked by Chris 1 in Astronomy & Space

Taking in the fact that humans are the only notably advanced spiecies on the planet.
im not asking if anyone actually knows (as i dont believe there is a %100 conclusive answer), just what they think!

2006-11-06 04:35:02 · 17 answers · asked by Notre1Dame 2 in Earth Sciences & Geology

2006-11-06 04:34:55 · 3 answers · asked by rida a 1 in Chemistry

2006-11-06 04:33:40 · 8 answers · asked by crazybrunette1991 2 in Biology

There is a Ladybird in our house and I let it out but it keeps crawling back into our bathroom. I was wondering how should I look after it. What do they eat? I think its injured hence the reason, it cant seem to fly.

I want to do all I can to help it. Should I buy a "house" for it, are there such things?

2006-11-06 04:31:44 · 12 answers · asked by Siu02rk 3 in Zoology

2006-11-06 04:31:19 · 8 answers · asked by cash_md 1 in Medicine

2006-11-06 04:30:41 · 9 answers · asked by grasscutter 1 in Mathematics