Physics - August 2007

2007-08-28 09:52:26 · 4 answers · asked by jake C 2

Except for the formation of the Internet, I see little use for quarks, dark matter and the Higgs Boson in my daily life.
Am I missing a trick or could the billions already spent, been used for a practical use e.g. Cancer cure or developing the third world.

2007-08-28 09:47:35 · 12 answers · asked by anteatersrus 3

a cylinder (mass = 7kg radius=0,15m height = 0,12) is floating in water.

oil is added so that it is floatin between the oil and the water.

i want to know how much of the height of the cylinder is in oil??

method please.Thanks in advance

2007-08-28 09:38:03 · 1 answers · asked by Anonymous

2007-08-28 09:05:59 · 6 answers · asked by d_love4u 1

What is his weight in deep space, far away from any celestial body? What is his mass there?

2007-08-28 07:11:46 · 12 answers · asked by Pascal 4

If she´s 5´8" and 135 lbs in normal size but she grows to a 150 foot tall giantess. What would her weight be... the GTS Converter says 169 tons. Can someone approve that ?

2007-08-28 07:09:23 · 7 answers · asked by Josh 2

I noticed that a low flow continuous stream of water from my kitchen faucet will deflect toward the balloon when I bring the balloon to where it is almost touching the stream.

If you try this adjust the flow for a fairly weak stream, laminar in nature. Blow up a small latex balloon to about six-seven inches in diameter, then bring it closer and closer to the stream and you will see the stream appear to follow the curvature of the balloon deviating from its original straight down path. Why does this happen?

2007-08-28 07:02:12 · 3 answers · asked by andyg77 7

IVE JUST BOUGHT a book called " new higher physics .. 2ed"

the train travels the 75km between edinburgh and glasgow... in 50 min (0.83 hours) its average speed is

average speed = 75km
------
0.83 h
average speed = 90km h(-1)

WHAT THE HELL IS (-1) how can we calculate this (-1) .. and what does it mean?!

2007-08-28 06:28:30 · 4 answers · asked by TRUE-NERDY-BOY 1

Suppose that the displacement of an object is related to the time according to the expression x=Bt^2. What are the dimensions of b?
also
A displacement is related to the time as x= Asin(2pi f t) where A and f are constants find the dimensions of A (hint: a trigonometric function appearing in an equation must be dimensionless)

2007-08-28 06:18:05 · 6 answers · asked by Snowandskibaby 2

Why not 1 neutron attached to 2 protons?
Or 1 proton attached to 2 neutrons?

Why does it always have to be 2 neutrons and 2 protons attached to each other???

2007-08-28 06:00:14 · 4 answers · asked by Anonymous

can anyone state the type of thermometer and its history (who invented it... the one that can list out the most will get 10 points..!! thanks..



***by the way, don't ask me to google coz i already did...

2007-08-28 05:56:37 · 4 answers · asked by kit 3

There must be a precise answer.......

2007-08-28 05:44:25 · 20 answers · asked by Anonymous

... how does that work. When you open your homes back door and front door and you get a powerful breeze streaming through the house.

Same thing happened in the car earlier. I was parked up and opend both drivers and passengers windows which resulted in a pleasant breeze

2007-08-28 05:32:38 · 14 answers · asked by Anonymous

the speed of a particle doubles and then doubles again because a net external force acts on it. Does the net force do more work during the first or the second doubling? explain

2007-08-28 05:26:52 · 4 answers · asked by i-sena 1

i don't think there are any random experiments... they jus happen randomly cause the experiments are not repeated under the "same" conditions...

2007-08-28 05:18:06 · 5 answers · asked by Kai 1

2007-08-28 05:00:22 · 4 answers · asked by Anonymous

Atwood's Machine,the manual says: "The experiment woks best when the sum of te masses is large compared to the difference between the masses."

2007-08-28 04:37:18 · 4 answers · asked by Anonymous

2007-08-28 02:40:55 · 6 answers · asked by FRIEND 1

1) a boy is throwing two stones, one vertically up and the other vertically down with the same speed. the second stone experiences greater acceleration.

2)in order to hit a target, a man should point his rifle in the same direction as the target.

(no jokes please, really urgent)

2007-08-28 02:39:08 · 5 answers · asked by Anonymous

2007-08-28 02:38:42 · 7 answers · asked by nagar n 1

no jokes please, really urgent

2007-08-28 02:34:47 · 3 answers · asked by Anonymous

2007-08-28 01:49:43 · 6 answers · asked by Buckminster 1

(((((Natural Gases as Sources of Energy in the Year 2030)))))

Is it good or bad? ... fOr a dEbate in my class... thanKs! : D

2007-08-28 00:52:38 · 3 answers · asked by arjie626 2

thaankss! (:

2007-08-28 00:07:25 · 3 answers · asked by Ocean Princess 1

torque = force * perpendicular distance

so if you have a square that rotates about an axis that is not in the centre of the square, and a force is applied to one corner of the square an it is perpendicular to the square, does this still constitute torque.

|--------------------|
|--------------------|
|--------------------|
|----o =Axis------|
|--------------------|
|--------------------|<-------- Force Applied here

2007-08-28 00:03:20 · 3 answers · asked by Anonymous

2007-08-28 00:00:27 · 20 answers · asked by arwa s. 2

2007-08-27 23:41:33 · 5 answers · asked by medo 1

two objects A and B of respectiv masses Ma = 8 kg, Mb = 2kg
are travelling towards each other along the x-axis with
velocities ua = 40 ms^-1 and ub = 5 ms^-1, when they collide
and coalesce into a single object

After the collision the combined object moves along the x-axis
How much energy is lost in the collision?

2007-08-27 23:21:43 · 3 answers · asked by   4

Challenge Problem #3: Damped Periodic Motion
If there is no friction in the setup shown below, the block, once it is released, will oscillate
forever between the two springs. Its motion could be described as simple periodic or
simple harmonic motion.
If there is friction, however, mechanical energy will gradually be lost to heat and the
oscillations will get smaller and smaller until eventually the block comes to rest. In this
case the motion would be called damped periodic motion. If the oscillations die out very
rapidly (for example, over only a few oscillations) we would call it heavily damped
periodic motion.
Given the values shown below, determine where the point P (mid-point of block) will be
with respect to the mid-point of the table when the oscillations die out and the block comes
to rest. Assume both springs are identical.
Spring constant: 152 N/m
Mass of block: 0.785 kg
Width of block: 6.00 cm
Coefficient of kinetic (and static) friction: 0.084
Mid-point of table
17.8 cm
Mid-point of table
12.0 cm
Block ready to be released
Both springs in rest positions
Left spring compressed;
P
17.8 cm

2007-08-27 22:48:24 · 2 answers · asked by yusuke_kousuke 2

Question:

1) I need to know which measurements to take to make this experiment?
2) One precaution
3) What graph should I plot?

2007-08-27 21:16:11 · 3 answers · asked by Christopher Portelli 1