Physics - November 2006

How long in ms does it take sound to travel 4.25 inches under normal conditions.

2006-11-10 07:56:02 · 3 answers · asked by dderat 4

Suppose you wanted to limit the force acting on your joint to a maximum value of 8.29 102 N.

(a) Under these circumstances, what maximum weight would you attempt to lift?Fmax =

(b) What force would your biceps apply while lifting this weight? Fbiceps =

2006-11-10 07:44:49 · 2 answers · asked by RunmanJr2 2

2006-11-10 06:04:22 · 6 answers · asked by goodbye and good luck :-) 1

2006-11-10 05:41:04 · 8 answers · asked by chris q 1

If I wanted to convert Hz to KHz would I multiply or divide by 1000

2006-11-10 05:30:48 · 4 answers · asked by p_rob22 1

A23 kg boy sits 1.5 m from the axis of rotation of a seesaw. At what distance from the axis of rotation must a 21kg boy be positioned on the other side of the axis to balance the seesaw?

2006-11-10 05:07:04 · 4 answers · asked by ? 2

according to physicists all matter is already in existence so where do these pesky photons come from?? in the bulb there are electrons protons and neutrons making up the atoms of the metal and glass of the bulb but i don't see where the photons come from? i understand how they are produced but not why and where from

2006-11-10 04:45:09 · 5 answers · asked by mwah ha haha ha ha ha haaa 2

2006-11-10 04:42:27 · 2 answers · asked by aks 1

many musical instruments contain wires which are stretched between two fixed supports. these wires are often made to resonate in their fundamental mode of vibration.

The frequency of the note produced by the wire when it vibrates depends on 1) the length of the wire between 2) the tension in the wire 3) the mass per unit length of the wire
design an experiment to investigate how the resonant frequency of a wire vibrating in its fundamental mode depends on the tension in the wire.
in your account pay particular attention to
a) the method by which the wire would be made to vibrate at a known frequency
b)how the resonant frequency and the tension would be measured
c) the procedure to be followed
d) control of variables
e) safety precautions which you would take.

2006-11-10 03:54:04 · 1 answers · asked by hukedonfunixreelywurksfurme 2

if we have nine, 385 pound men who are streaking at 17 miles per hour, how long will it take them to streak 3 miles???

2006-11-10 03:53:16 · 4 answers · asked by bigschwinger 2

2006-11-10 02:54:40 · 2 answers · asked by starbrightlight 1

how do i convert 1/2 revolutions to radians?

2006-11-10 02:52:31 · 3 answers · asked by Chris D 1

how do i convert 180 degrees to radians?

2006-11-10 02:47:51 · 2 answers · asked by Chris D 1

2006-11-10 02:39:39 · 7 answers · asked by Prasanna 1

what is the time it takes for them to streak this distance???

2006-11-10 02:33:02 · 3 answers · asked by bigschwinger 2

Can anyone please tell me why long wires provie more resistance than short wires in as much scientific detail as possible? Ignoring thickness. I'm confused... is it because more electrons collide with more atoms, increasing the energy transfer form kinetic energy to thermal energy? S.O.S

2006-11-10 02:01:26 · 8 answers · asked by ? 1

2006-11-10 01:43:57 · 3 answers · asked by tanesha l 1

hi .... i'm hoping someone can help me with a question for my high school physics class ..... it's not homework but it's in the book and i want to figure it out ........ can some please help? i'm not sure what to do...... :-)


A space station consists of a circular tube which is set rotating about its center (like a tubular bicycle inner tube). The circle formed by the tube has a inner diameter of 1.5 km and an outer diameter of 1.6 km.

-- Where will the people inhabit this space station?

-- What must the rotation speed be if an effect equal to Earth’s gravity at the surface is to be felt by its occupants?

-- What torque must be applied to the station if it is to attain this speed from rest in two hours and the mass of the station is 187,016 kg?


can someone help? thanks

:-)

2006-11-10 01:39:10 · 4 answers · asked by Lisa S 1

Hi I was reading with interest a page on the idea of a vertical pipe stood in a pool of water. I am interested in this subject. http://www.du.edu/~jcalvert/tech/fluids/hydstat.htm#Maxh
Does the column of water have any affect on the pressure at the bottom of the beaker it is standing in. For instance if a column of water was to be closed by a door from the liquid in the beaker, would the pressure of the water be changed. does the column of water have no affect on presure of water in the beaker it is standing in. I think this is an important scientific question and i can find no answer to it. It would be common sense that standing a column of water would mean a higher pressure excerted on the beaker, but is that not the reality. As the atmposheric pressure was already excerting pressure. Does anyone have the technological equipment to do this experiment. As i don't.
Does anyone have a watch barometer.

2006-11-10 01:21:07 · 3 answers · asked by acacaac a 1

It is a question based on thermal expansion.

2006-11-10 01:16:04 · 4 answers · asked by Anonymous

2006-11-10 00:56:15 · 3 answers · asked by mark1000p 1

2006-11-10 00:55:41 · 4 answers · asked by renjuk4d 1

2006-11-10 00:53:29 · 8 answers · asked by supremecritic 4

2006-11-10 00:52:47 · 4 answers · asked by Napster 2

Whats the diffderence btw lumens and nanometers. They both measure light, but whats the difference.

2006-11-10 00:28:10 · 3 answers · asked by Danny O. 2

I have a theory that contrary to popular belief hot air does not rise, (at least of its own accord) but that it only appears to do so because it is forced out of the way by colder, denser air. Does anyone agree?

2006-11-10 00:22:03 · 18 answers · asked by spoon_bender001 2

I'm studying transparent conducting oxide now. One of the requirement of TCO materials is >> there can be no interband transition less than 3.1 eV in energy. This limits consideration to cations with filled d-shells, such as 3d10Cu+, Zn2+, Ga3+, 4d10 Ag+, Cd2+, In3+ and Sn4+.

Could somebody explain to me what does it mean ? Thanx

2006-11-10 00:10:23 · 3 answers · asked by Antila 2

Please dont answer gravitations energy as it is ony an explaination not the answer!!!!!!!!

2006-11-09 23:49:01 · 6 answers · asked by amit r 1

Would he have broken the light speed barrier?

2006-11-09 22:39:07 · 16 answers · asked by IshotJR 2

2006-11-09 21:47:46 · 7 answers · asked by supremecritic 4