Physics - November 2006

2006-11-15 10:17:05 · 4 answers · asked by amipatel333 1

do 2 or more molecules make a cell??

2006-11-15 09:46:41 · 2 answers · asked by Anonymous

here's the prompt:
You are an archeologist in the year 4005 and you find an ancient tool chest from the year 2000. Describe one of the tools in the chest, describing the simple machines involved in its shape and use.
so what i am looking for from you, is what tool would you choose?
i would like an easy tool to write about but also a good tool that has many spimple machines involved with it.

2006-11-15 09:40:20 · 4 answers · asked by Anonymous

Physics question,
laws of reflection,
rotatation of image in left to right direction..
y is not in top to bottom?

2006-11-15 09:12:57 · 4 answers · asked by Sanish 1

This question was on a science test I took at school. I think its false because gravity will eventually make the object fall to the ground, but my teacher won´t listen to me.
What do you think?---------------

"Ignoring air resistance, the horizontal velocity of an object never changes". True or False.----------

2006-11-15 08:44:50 · 13 answers · asked by Rafael 1

have you lost a few hours opr gained any and not known how? any weird clouds of energy affecting car etc......
would love to know.

2006-11-15 08:28:35 · 14 answers · asked by jayne beal 3

Do lights of Red, orange and yellow have higher energy than green blue and violet?
how would you compare the energy of green light to orange light?
does the green light have less energy than orange light?

2006-11-15 08:28:00 · 2 answers · asked by Anonymous

I heard Andrew Wiles got close, did he solve it

2006-11-15 08:19:31 · 6 answers · asked by Glenn M 4

Apparently - saw an article on bbc.co.uk - the transfer of energy is possible via electromagnetic resonance if the antenna used to receive the energy resonates in the same way as the antenna transmitting it, over a given distance.
The example used to describe this was of a string plucked on an accoustic guitar, where the vibration of the string causes the body of the instrument itself to vibrate (which musicians feel and are said to use to manipulate the sound generated by both).

Also, apparently magnetism is a result of electrons spinning round in a certain direction and if they are spinning in the same direction as another group of electrons (clockwise for example) then they are said to have the same polarity and repel each other - and if they are spinning in the opposite direction from each other (one group clockwise, the other anticlockwise) then they attract each other.

Do the electrons also resonate?

Can these two properties - if true - mean we could pick up energy?

2006-11-15 07:39:32 · 6 answers · asked by cragoogle 1

2006-11-15 07:32:56 · 3 answers · asked by Anonymous

In an amusement park ride, a cylinder of radius 2.50 m is set in rotation at an angular speed of 4.10 rad/s. The floor then drops away, leaving the riders suspended against the wall in a vertical position. What minimum coefficient of friction between a rider's clothing and the wall of the cylinder is needed to keep the rider from slipping?

I have found linear speed of 10.25 m/s but now I am stuck. Any help??

2006-11-15 07:15:58 · 4 answers · asked by gunder53534 2

2006-11-15 06:44:03 · 3 answers · asked by Raju Athokpam 1

If two objects come into contact with one another, do they actually touch, or do they repel each other without contact being made. Obviously we feel ourselves touching objects, but on a nano scale, do our atoms meet, or just 'bounce off'?

2006-11-15 06:15:50 · 13 answers · asked by andrew.shepherd 2

To describe hall affect, why a thin flat conductor is used? Why not circular conductor is used?

2006-11-15 06:15:03 · 3 answers · asked by star123 2

There are 2 containers filled with gas. In 1st container there's pressure of 10 bar and the volume is 300 liters in the second one the volume is 400 liters and the pressure 3 bar. How can I calculate what pressure it will be when the gases containedin these 2 containers mix together creating one container composed of the former 2 the volume is obviously 600 liters. V1=300 l p1=10 bar V2=400 l p2=3 bar V(together)=600 l p=?
srry 4 my english

2006-11-15 06:02:05 · 3 answers · asked by Anonymous

Why are some people never affected or electrocuted by high electric currents passed through their body?
Addnl Details:

Quite often we hear about strange persons who demonstrate the ability to withstand the passage of high electric currents through their own bodies with out getting electrocuted in newspapers and TV. What sort of phenomenon is that ? Are they natural conductors?
(NB: this is not about stories of multiple lightening strikes or just incidents of luck where the current just happened to spare vital electrical organs like heart or brain or nerves. Its about real people who literally " perform" these acts live )

2006-11-15 05:59:50 · 2 answers · asked by Suraj 2

A string trimmer is a tool for cutting grass and weeds; it utilizes a length of nylon "string" that rotates about an axis perpendicular to one end of the string. The string rotates at an angular speed of 52 rev/s, and its tip has a tangential speed of 54 m/s. What is the length of the rotating string?

2006-11-15 05:56:08 · 2 answers · asked by Jim E 1

A boulder is raised above the ground so that its potential energy relative to the ground is 250 J. Then it is dropped. What is its kinetic energy just before it hits the ground?

Suppose an automobile has 1100 J of kinetic energy. When it moves at twice the speed, what will be its kinetic energy?
What's its kinetic energy at three times the speed?

100 N block of ice a vertical distance of 1 m is is raised the same vertical distance by pushing it up a 1.67 m long inclined plane, only 60 N of force is required. Calculate the work done to push the block up the plane.
What PE does it have?

2006-11-15 05:44:59 · 3 answers · asked by Anonymous

to exist?

2006-11-15 05:16:23 · 7 answers · asked by General T 2

2006-11-15 05:09:53 · 8 answers · asked by This is my username 3

I am a college student and will be taking Physics 1 and 2 in the upcoming year. I've heard horror stories about Physics. I've made it through life cramming the night before for tests and doing just fine. I have a feeling this won't work as I get into my harder classes. And I just realized I have no study habits. What is it about Physics that makes it so hard, and any good ways to study for it?

2006-11-15 04:50:11 · 10 answers · asked by sunshine 2

PLEASE HELP ME><""

2006-11-15 04:31:42 · 2 answers · asked by cReeZtall! 2

2006-11-15 04:29:51 · 6 answers · asked by axxess01 1

If neutronium is a material that is completely composed of neutrons that are actually in physical contact, then wouldn't a flat plane of it (hypothetically) be reflective down to the molecular level? Would an atom-sized lifeform (if one could exist) be able to see it's own reflection?

2006-11-15 04:20:17 · 8 answers · asked by brainzrgood4u 2

2006-11-15 04:06:36 · 21 answers · asked by mead2k74eva 1

heard this on the radio but didn't catch the details.
any info would be great. looking for simple science projects for kids using stuff around the house

2006-11-15 03:49:37 · 4 answers · asked by ♪ ♫ ☮ NYbron ☮ ♪ ♫ 6

Whats happen if we break a maget par in to two pieces. Are the parts attract each other in the way we broke them??

2006-11-15 03:44:52 · 6 answers · asked by Crazy M 1

2006-11-15 03:41:38 · 4 answers · asked by Anonymous

2006-11-15 03:03:55 · 7 answers · asked by Anonymous

2006-11-15 03:00:48 · 4 answers · asked by styce 4