Physics - September 2006

What if, parralel universes where execlty the same but difent times? Then you make a teloportation devise form here (U1) to somthing 80 years later (U2) and 80 years eirlyer (U3) then you can go to U3 and kill your grandad, but, you from U2 have killed you grandad whilst their grandad is being killed by you else so on and you, you 2 and you3 would be dead and have never come back in time or killed everyone. Whitch means you are alive and kill your grandad. Whitch means you're dead an- e.c.t

2006-09-30 02:00:40 · 4 answers · asked by me 2

2006-09-30 01:54:40 · 3 answers · asked by piti 2

They hang apart owing to mutual repulsion and form a horizontal square. I want to know the length of each side of the square in terms of q, m and the thread length l. Can this formula be generalized to 'n' particles ?

2006-09-30 01:07:03 · 5 answers · asked by Problem Child 2

2006-09-30 01:03:16 · 8 answers · asked by beautiful 2

2006-09-29 22:44:25 · 10 answers · asked by Anonymous

I need scientific answers please.

2006-09-29 22:43:42 · 6 answers · asked by Anonymous

Note: U-Value is the rate of heat flow per unit area and unit temperature.

I need scientific answers please.

2006-09-29 22:40:47 · 5 answers · asked by Anonymous

does it go straight down?

2006-09-29 22:33:36 · 15 answers · asked by Anonymous

one more question

how can we calculate the amount of energy a generator can generate?

i will be thankful to u all for answering to my questions

2006-09-29 22:24:11 · 3 answers · asked by behroz_ahmedali 2

An interplanetary spaceship passes through the point in space
where the gravitaional forces from the sun and the earth on the ship exctly cancel.

a.) how far from the center of the earth is it?

b.) what, if anything, happens to the spaceship when it passs through the point described in part (a)?

for a.) the answer is 2.59x10^8 m ---> we just don`t know the solution....

2006-09-29 20:33:59 · 5 answers · asked by dengshii_0515 2

2006-09-29 20:31:37 · 5 answers · asked by nancy 1

What new about cold fusion research

2006-09-29 19:33:10 · 9 answers · asked by Anonymous

2006-09-29 19:29:39 · 4 answers · asked by vpshanbhag 1

I've done plenty of standard deviation calculations, but I don't understand what the end result represents. Can any one help me understand?

I also have a physics problem refering to use standard deviation to find the average range. That dooesn't seem right to me. Am I misunderstanding the statement?

2006-09-29 18:49:40 · 9 answers · asked by ecogrl23 2

2006-09-29 18:43:24 · 6 answers · asked by J C 1

across the 100ohm resistor .It reads 200V.(i) What is the Internal resistance of the ammeter & (ii) What is the real EMF of the battery.

2006-09-29 18:16:57 · 1 answers · asked by baban 2

dS = Sqrt( (dx)2 + (dy)2 + (dz)2 + c(da)2 )
I just want to learn more about relativity, I love Physics!

2006-09-29 18:09:52 · 5 answers · asked by deutsch_rj 2

2006-09-29 17:13:22 · 9 answers · asked by Anonymous

I mean to say that it will have a self recharging mechanism inside it.like rechargeable batteries.It will run on electricity.Wind or solar energy can be used to recharge inside mechanism,instead of recharging it with electricity.

2006-09-29 17:04:12 · 26 answers · asked by alexander_nutrov 1

object if it came to a complete stop?

2006-09-29 16:39:00 · 14 answers · asked by mhdow2000 2

Ok so I have already worked these problems out but I'm just wondering what you guys get. Here are the problems:

Bill is in outer space on his way out of L.A. A force of 10 N pushes on Bill. Suddenly, when Bill has reached a speed of 250 mph, another 10 N force, directed opposite to the first force, also pushes on Bill. Now, with both forces acting on Bill, what happens to Bill's speed?

a) Bill will stop.
b) Bill will slow down.
c) Bill will speed up.
d) Bill will continue moving at a constant velocity.

Number 2:

Two blocks of masses 20 kg and 8 kg are connected together by a light string and rest on a frictionless level surface. Attached to the 8 kg mass is another light string which a person uses to pull both blocks horizontally. If the two-block system accelerates at 0.6 m/s^2, then what is the tension in the connecting string between the blocks?

a) 12 N
b) 6.0 N
c) 20 N
d) 4.0 N

Please provide why you feel the answer is right. Feel free to send me an IM. :)

2006-09-29 16:28:46 · 4 answers · asked by Anonymous

with a radius of 4.9 cm. A mass on the left is 15 kg, and a mass on the right is 4.9 kg. The masses are hanging freely with the center of their masses a vertical distance of 2.7 m apart. (Acceleration of gravity = 9.8 m/s2)

What is the rate that the two masses are accelerating when they pass each other (answer in m/s2)?

What is the tension in the cor when they pass each other (answer in N)?

2006-09-29 16:28:18 · 2 answers · asked by Dee 4

2006-09-29 16:20:02 · 32 answers · asked by wayniepoo62 2

2006-09-29 16:12:56 · 6 answers · asked by fasisi2003 1

2006-09-29 15:54:04 · 2 answers · asked by jbihya 1

how much tension is exerted in the strand (answer in N).

How much tension if the bag was supported by 8 vertical strands (how much tension would be exerted in each strand?) Answer in N.

Been working on this & would like to compare to the correct work & answer.

Really appreciate your help.

2006-09-29 15:49:16 · 2 answers · asked by Dee 4

When a gun is fired, the bullet will reach maximum velocity at some point. Where is this point?

2006-09-29 15:47:49 · 9 answers · asked by Rob S4336 1

2006-09-29 15:22:23 · 15 answers · asked by Anonymous

Well, I have to do a research project on any scientist that works in any field of physics..and I got recommended from my teacher to do Stephen Hawkings..but when I try to research things on sites and such, all the information is hard to understand, considering I'm only in middle school. Would anyone be kind enough to help me and explain his theories (right or wrong) in a simpler way? o__o; Something maybe a middle school student can understand?

2006-09-29 15:14:00 · 5 answers · asked by 2514 2

2006-09-29 14:58:26 · 4 answers · asked by panther 1