Physics - November 2006

Is the universe and ordered or chaotic one? why?

2006-11-20 10:02:13 · 3 answers · asked by tigersfan48111 2

A student eats 2000 kcal per day. (a) Assuming that all of the food energy is released as heat, what is the rate of heat released (in watts)? (b) What is the rate of change of entropy of the surroundings if all of the heat is released into air at room temperature (20 C)?

2006-11-20 09:59:02 · 2 answers · asked by Wes 2

2006-11-20 09:58:49 · 1 answers · asked by merviedz trespassers 3

2006-11-20 09:55:55 · 5 answers · asked by lostprophetslove 1

If they get pulled together by gravity, then that means they have gained kinetic energy and lost no mass, but the law of conservation of energy forbids that!

2006-11-20 09:50:00 · 2 answers · asked by merviedz trespassers 3

Please disregard Protons, Neutrons, and Electrons. What is the fastest velocity in Miles Per Hour that man has accelerated an object to thus far. An object is considered to be something like a
bullet, a jet plane, a space ship, a satellite, a space probe, etc.

I am asking this question in light of the many questions on Yahoo Answers concerning possible time travel and the need to go faster than 186,000 miles / second. I don't think we are anywhere close to man made velocities in that range. Can you provide any specifics?

2006-11-20 09:42:26 · 2 answers · asked by zahbudar 6

A horizontal force of 150 N is used to push a 41.5 kg packing crate a distance of 6.10 m on a rough horizontal surface. If the crate moves at constant speed. What is the coefficient of kinetic friction between the crate and the surface? Please show your work. Thank You!!!

2006-11-20 09:32:52 · 4 answers · asked by Tennis2127 2

What is the Effor Force?

What is the Resistance Force?

2006-11-20 09:29:28 · 3 answers · asked by Ern Bucket 2

Why would the current in the wires closest to the source increases?

My guess: because the current are not splitted

Please give me your guidiance:)

2006-11-20 09:16:09 · 2 answers · asked by Anonymous

In a paralled circuit, why would the sum of thecurrent passing through (let say) 3 resistors is the same as the current entering and leaving the source?

**Isn't there is the same amount of current at all points of circuit**

Please help

2006-11-20 09:08:18 · 7 answers · asked by Anonymous

in the direction in which the train is traveling. Compare the speed of the light beam relative to the ground when the train is at rest and when it is in motion. How does the behavior of the light beam differ from the behavior of the bullet in Exercise 3? (my previous question)

2006-11-20 09:08:02 · 3 answers · asked by lostprophetslove 1

2006-11-20 09:07:03 · 5 answers · asked by <33 ash.&& 1

Alright, let say a planet was 35 light years away, and i build a " machine " which let's me be in the planet in a blink . Is this Teleportation? Time traveling? or what?

2006-11-20 09:02:30 · 4 answers · asked by Anonymous

2006-11-20 08:57:09 · 9 answers · asked by <33 ash.&& 1

2006-11-20 08:10:58 · 10 answers · asked by Anonymous

In Scientific Terms, Please

2006-11-20 07:06:02 · 7 answers · asked by Gordito 1

2006-11-20 07:05:47 · 5 answers · asked by aryan z 1

within the precisions of a high school lab, do these data points at least somewhat support the relation that v^2 is proportional to Fc

from the equation v^2=Fc*r/m

Fc=.49 V=4.4 m/s
.98, 6.1
1.5, 7.1
2.0, 8.0

I see the Fc go up about .5 each time and with one exception, the velocity going up 1 each time....I just need help seeing how these points relate to the relationship v^2 is proportional to Fc

2006-11-20 06:40:11 · 2 answers · asked by Anonymous

2006-11-20 06:22:38 · 4 answers · asked by BRIGHT N 1

2006-11-20 05:59:22 · 3 answers · asked by leigh w 1

how far can u. i can gleed 52 feet.

2006-11-20 05:50:01 · 3 answers · asked by Anonymous

Recent Hubbel observations and conlusion of those observation are they correct?

2006-11-20 05:44:54 · 2 answers · asked by goring 6

according to second law of thrmo dynamics..every one knows that heat will flow from body at lower temparature to body at higher temparature with the aid of external agency(work)..then...consider a refregerator..in the evaporator .heat is actually flowing from high temparature products(food ,items ..etc) to low temparature refregerant(which is cooled by expanding to lowpressure).....but not from low temparature refregerant to high temprature products..

2006-11-20 05:17:44 · 3 answers · asked by hiris(Hi..RiSK) 1

explain how scientist have proven that god is real

2006-11-20 05:08:03 · 25 answers · asked by ? 2

every one knows that heat will flow from body at lower temparature to body at higher temparature with the aid of external agency(work)..ok...consider a refregerator...heat is actually flowing from high temparature products(food ,items ..etc) to low temparature refregerant(which is cooled by expanding to lowpressure)...even with the aid of compressor work..but not from low temparature refregerant to high temprature products..

2006-11-20 05:00:54 · 4 answers · asked by hiris(Hi..RiSK) 1

The grid in a high-vacuum triode is usually kept negatively charged with respect to the cathodes so that the electrons may be?

2006-11-20 04:59:51 · 1 answers · asked by elizabeth t 1

Hi everyone! I wanted to ask you a Multiple choice question appearing in my exam. The question is as follows:

3 students stand 2 m apart in front of a plane mirror which is 3 m long. Student Y is standing opposite the mid-point of the mirror while the other 2 students are standing 2 m from him in a staight line.


The question is how many students can see the images of the other two?

A) 0
B) 1
C) 2
D) 3


Only one answer is correct. Please explain your answer. I try to copy the figure provided in the question as below: X and Z are standing 2 m from Y who is at the middle of the mirror.

<- Mirror (3m) ->
X <- 2m -> Y <- 2m ->Z

2006-11-20 04:55:29 · 3 answers · asked by Y L 2

2006-11-20 04:53:51 · 1 answers · asked by goring 6

Hi everyone! I wanted to ask you a Multiple choice question appearing in my exam. The question is as follows:

3 students stand 2 m apart in front of a plane mirror which is 3 m long. Student Y is standing opposite the mid-point of the mirror while the other 2 students are standing 2 m from him in a staight line.


The question is how many students can see the images of the other two?

A) 0
B) 1
C) 2
D) 3


Only one answer is correct. Please explain your answer. I try to copy the figure provided in the question as below: X and Z are standing 2 m from Y who is at the middle of the mirror.

<- Mirror (3m) ->
X <- 2m -> Y <- 2m ->Z

2006-11-20 04:51:33 · 4 answers · asked by Y L 2

2006-11-20 04:51:06 · 1 answers · asked by goring 6