Physics - November 2006

2006-11-18 06:20:31 · 3 answers · asked by hihi 3

Apologies to Mr. Wright, but I always wondered.

2006-11-18 06:11:47 · 8 answers · asked by Anonymous

where one is blown bigger are connected by the strow for pressure to equalize. Will the bigger balloon get bigger or smaller?
Please give the proof.

2006-11-18 05:56:12 · 6 answers · asked by fernando_007 6

A force of 28.0 N is required to start a 3.2 kg box moving across a horizontal concrete floor.If the 28.0 N force continues, the box accelerates at 0.50 m/s2. What is the coefficient of kinetic friction?

2006-11-18 05:21:36 · 3 answers · asked by tjmierzwa 2

Is there somthing that emits radiowaves?

2006-11-18 05:16:55 · 5 answers · asked by Anonymous

I know of the Kennedy–Thorndike experiment, but it involves light. I am curious whether a different kind of experiments showing relativistic effects like time dilation or length contraction have been performed (I'm thinking of experiments involving mechanical devices like mechanic clocks, rather than light clocks). If there are none, why should we accept that relativistic effects occur for other kinds of moving devices (like mechanical clocks), besides those using light (like light clocks). I'm not questioning SR, I just don't know the answer.

2006-11-18 05:09:23 · 7 answers · asked by quantum 1

Consider a frictionless track ABC as shown in Figure P9.26. A block of mass m1 = 5 kg is released from A. It makes a head-on elastic collision at B with a block of mass m2 = 10 kg that is initially at rest. Calculate the maximum height to which m1 rises after the collision.


Here is the diagram http://www.webassign.net/sb5/p9-26.gif


I know that KE and Momentum are conserved....and this is what i have so far...

m1v1=m2v2f + m1v1f

mgh = 1/2mv1^2 + 1/2mv2^2

I don't know where to go from here, if this is even right

2006-11-18 04:59:07 · 1 answers · asked by ĞĦΘsŦŖiĐęŖ 2

Someone saw this in Knowledge Sponge, a show from Korea.

2006-11-18 04:42:18 · 3 answers · asked by happyman 3

Has it ever been done before?
Who are the physicists (if any) or Universities who/that are working on it?
Can anyone help me with the web-sites that talk about it?
Would the effect be catastrophic? Somewhat like ENERGY being released from MATTER, in a nuclear explosion.?

2006-11-18 04:29:24 · 7 answers · asked by ? 2

2006-11-18 04:27:08 · 9 answers · asked by Anonymous

If the Four forces of the "Unified Field" (Gravity, Small & large Nuclear forces and EM force are the forces that support the Dimension of "Mass" or "Matter",
What are the forces that support "Space" and "Time" Dimensions?

2006-11-18 04:18:13 · 6 answers · asked by ? 2

Someone saw it on the show Knowledge Sponge from Korea.

2006-11-18 04:13:23 · 2 answers · asked by happyman 3

Taking into account the marvellous contribution by these noted scientists, all of them can be formed into a chain like socrates, aristotle and plato but someone has to be the greatest, who was the one who turned the wheel of scientific events completely.And if you think someone else is still better than them who can it possibly be.

2006-11-18 03:48:35 · 10 answers · asked by prankstir 1

2006-11-18 03:45:45 · 3 answers · asked by Anonymous

2006-11-18 03:10:07 · 14 answers · asked by Craig W 1

A 115 kg solid gold statue is being raised from a sunken treasure ship.

2006-11-18 02:45:20 · 1 answers · asked by Anonymous

a. what is its volume?
b. the statue is suspended from a rope and totally immersed in water. what is the tension in the rope (the apparent weight of the statue in water)?

2006-11-18 02:31:09 · 3 answers · asked by Anonymous

does a light with black colour exist?

2006-11-18 02:20:10 · 11 answers · asked by Praveenkumar S 1

Q1:two steel wires of the same length and stretched by the same force vibrate with frequencies of 440hz and 660 hz respectively.calculate ratios of diameter of wires.
Q2:a well with vertical wall resonate with a note of frequency 7.0hz and doesnot resonate lower frequencies.estimate the depth of the well if the speed of sound in air is 350m/s
Q:3 the water level in vertical glass tube of length 1.0 m can be adjusted a tuning fork of frequency is held at upper open end of the tube.at what position of water level will resonance occur(speed of sound=330m/s.
i am writing answers of these questions
Q1:3/2
Q2:12.5m
Q3:0.125,0.375.0.625,0.875 from top
plz explain ur answers,and explain resonace tube as well

2006-11-18 01:12:36 · 2 answers · asked by ghulamalimurtaza 3

2006-11-18 00:50:26 · 3 answers · asked by goring 6

2006-11-18 00:50:07 · 10 answers · asked by mes 1

2006-11-18 00:38:48 · 4 answers · asked by Anonymous

humourous

2006-11-18 00:03:36 · 16 answers · asked by METAL_STOODS_CURSE 2

2006-11-17 23:55:06 · 3 answers · asked by Anonymous

R travels due north on the y axis. S travels in a direction directly towards R at all times. S eventually approaches the y axis going
(almost) due north. At that time, how far ahead is R?
I graphed this and came up with .41d.
Can anyone tell me what function or series represents S's course, and how they solved this?
Thanks for any help you can give me.

2006-11-17 23:43:04 · 2 answers · asked by True Blue 6

when weight of the body is less than the wt. of the liq. it displaces it gets immersed by tht much portion by which wt. of the displaced liq. becomes equal to the wt. of the body.
plz explain this.

2006-11-17 23:35:14 · 11 answers · asked by Anonymous

scientists tell us we produce so many tonnes when we fly or drive a car?

2006-11-17 23:07:34 · 12 answers · asked by tepoue 1

Flow of electrons,proton,electron,and a moving magnetic field.

2006-11-17 23:03:56 · 5 answers · asked by Anonymous

2006-11-17 22:42:38 · 5 answers · asked by cult_king_666 1

I know relativity says no, but there are ways around it. Assuming you had infinite resources, what are some ways of doing it? What would the machine to do it look like? Ignore the survivability of the transit for organic lifeforms, or if your idea requires a black hole or three and is impractical.

Most novel means of travel gets ten points.

2006-11-17 21:34:01 · 6 answers · asked by Wise1 3