Physics - May 2007

Some food like cereal works, but spinach won't.

2007-05-29 11:01:20 · 1 answers · asked by sourpapaya 1

I've always been intrigued, and a bit depressed, tbh, about the idea of the heat death of the universe. It's put a damper on my plans for immortality, thats for sure, an eternity with only high-energy photons for company could get dull. But now I hear that mayhap a quantum phase shift could change the universe something profoundly different in a finite time frame. Maybe within a mere 10^120 years! Is this true, and how does it work? What should I pack for the event?

2007-05-29 10:20:28 · 2 answers · asked by Anonymous

Where does the damage from canonballs come from? The weight and velocity or do they also detonate and explode?

2007-05-29 10:16:42 · 4 answers · asked by norbert 1

The force of friction can only slowdown your motion, right?

2007-05-29 10:01:14 · 4 answers · asked by Alexander 6

2007-05-29 09:52:25 · 3 answers · asked by Alexander 6

And how many watts does that equate to?

2007-05-29 09:40:34 · 4 answers · asked by (notso)Gloriouspipecleaner 3

earth? I have found that as a car accelerates, it accelerates the earth, albeit negligibly. Thanks.

2007-05-29 09:37:55 · 5 answers · asked by kmm4864990 1

2007-05-29 09:37:36 · 3 answers · asked by Lobster 4

I have got a physics problem which is described below.

There is a ring which radius is R. A little ball moves inside this ring. Ring's flat is normal to the surface of ground. When a ball is moving inside a ring (ring is in quiet), the ball reaches a height which is equal to R/2.
The ring starts to move plumb with a fixed acceleration. What is the value of the fixed ring acceleration, if the ball inside the ring reaches the top of the ring?

(I know the answer of this problem - acceleration is equal to 4g/5 and a ring moves down with this acceleration. How to achieve this answer?)

Thanks in advance.

2007-05-29 09:27:36 · 3 answers · asked by Pythagor 1

thx = )

2007-05-29 09:19:03 · 4 answers · asked by Anonymous

please your answers must be related to physics

2007-05-29 08:40:26 · 4 answers · asked by moi 2

There is a light, a sump pump and a filter. All have been turned off and I have turned off the entire electrical box that feeds these devices. There is still current in the pool. You can feel it if you put I foot in the pool and touch the metal railing or have one foot in the pool and the other foot on wet concrete outside the pool. Can the current continue, even if everything is off and there is a bad ground wire in something?

2007-05-29 07:54:32 · 7 answers · asked by pool queen 1

I know that Einstein designed the atomic bomb that was ulimately dropped on Hiroshima and Nagasacki. Is there a connection between the theory of relativity and the atom bomb?

2007-05-29 07:45:29 · 5 answers · asked by natobanato2 4

if i filled a wide pipe(w/e say 5 inches wide) with water. then capped off one end and let the water hang inside the pipe with the open side down. and i tried to float somthing that floats in water under normal preasure. (pongpong ball or w/e) will it float in the water and up the pipe? my guess it it wont float to the top. would there be anyway to float up the pipe? im trying to see how i can counter gravity force.

2007-05-29 07:43:09 · 3 answers · asked by Sam 3

I heard that scientists are able to produce a form of anti-matter and use it for many things one being used for fuel. Also heard that a single drop of antimatter would be able to fuel a car for years.

That sounds interesting to me, but it also makes me think, if something that small can fuel a car for years, wont it make a huge explosion as well.

is anti-matter unstable? What else can it be used for?

What do you think?

oh also, any xenosaga or metal gear fans out there? (just asking)

2007-05-29 07:30:15 · 5 answers · asked by Yeshua 1

2007-05-29 07:21:08 · 3 answers · asked by goring 6

2007-05-29 07:02:16 · 12 answers · asked by dullardboy 1

how can we still be able to hear sounds even though there is a big wall that is in the way?? Can air actually travel through walls?

2007-05-29 06:48:57 · 7 answers · asked by      7

egg that I placed into my microwave oven sunny side up explode on my face after I pierced it with a aluminum folk.,?

2007-05-29 06:47:02 · 5 answers · asked by Anonymous

how fast is light in miles per hour

2007-05-29 06:46:15 · 7 answers · asked by dmwallin2002 1

calculate the stress applied to the wire havng mass per unit length 0.1 g/cm and density 7 g/cm^3, when 10 gm wt is attached to itz free end. answer =6.86x 10^4 N/m^2. plz try ths one for me dudes....intellegnt minds plz

2007-05-29 06:43:14 · 2 answers · asked by khushal g 1

This is with respect to projectiles launched horizontally from a cliff :
when a projectile is launched with an initial velocity, is it true that it is equal to to the velocity just before it hits the ground?

2007-05-29 06:42:38 · 3 answers · asked by Anonymous

2007-05-29 06:23:33 · 2 answers · asked by socratus 2

Mass of the black hole is M = 10^12 kg.
Such black hole has radius about the size of a proton,
and it behaves as Newtonian point mass at inter-atomic,
and larger distances.

The black hole resides inside vacuumized ping-pong ball of
radius R = 2cm at distance D = 1 cm from the center of the ball.
A bucketful of water is hold around the ball by the pull of gravity of the black hole, and asumed its equilibrium shape.

What is the force of buoyancy excerted by water on the ball?

2007-05-29 06:14:13 · 8 answers · asked by Alexander 6

with example

2007-05-29 06:02:56 · 2 answers · asked by pandia 1

2007-05-29 06:01:15 · 2 answers · asked by mhd1995 1

I have a demonstrative project due tomorrow for my Physics 2 class. After attempting a rail gun and an ionocraft, I am out of ideas. I have copper wire, an ohm meter, and can obtain any other simple materials. Please help me.

2007-05-29 05:47:32 · 3 answers · asked by Anonymous

what would b da greatest length of a steel wire which at one end can hang freely without breaking? density of steel =7800kg/m^3.breaking stress of steel=7.8X 10^8 N/m cube. . ...answer is 10.20 km..plz try hard

2007-05-29 05:47:27 · 2 answers · asked by khushal g 1

2007-05-29 05:47:17 · 4 answers · asked by Anonymous

2007-05-29 05:45:01 · 3 answers · asked by Anonymous