Physics - March 2007

I get lost or disoriented inside buildings and also when driving. I can't tell which direction I'm travelling. Aren't we supposed to have an inner compass?

2007-03-11 06:10:10 · 4 answers · asked by geckosgirl 2

2007-03-11 06:06:56 · 5 answers · asked by geckosgirl 2

A 6.0 kg box is sliding up a 8.0 m long friction incline at a constant speed at an angle of 30 degrees by a force 50 N parallel to the incline. The coefficient of kinetic friction is 0.1. The work done against friction is??

2007-03-11 06:04:56 · 2 answers · asked by Anonymous

Two blocks are connected by a thin inextensible string over a frictionless massless pulley as shown on the picture below
The acceleration of gravity is 9.8 m/s^2 :
M1=21 kg
M2=11 kg
v = 3.5 m/s
a = 3.4 m/s^2
ANGLE=23DEGREE
Given that the two blocks move at 3.5 m/s
under an acceleration of 3.4 m/s^2, calculate
the coefficient uk of kinetic friction between
the left block and the incline.

2007-03-11 06:00:32 · 1 answers · asked by i.p 1

first of all I know portals don't exist. thats why it's called theoretical physics. last time I asked this the only answer was that I was that.

second of all there is a new game called portal and It has cool fun with theoretical physics and portals. so I have a couple of questions.

1. a created a portal on a wall and then one on my back and then walked through the first portal. what would happen.

2. if I created to portal on the ground and then I through a heavy box into one. would the box keep going up and down forever or would it eventually stop in the middle.

3. where can I find other free games where I can mess with theoretical physics.

when someone gets this game would some one answer these questions.

2007-03-11 05:41:43 · 2 answers · asked by Anonymous

________________________
|***********|***********************|
+*******10 ohms**************10 ohms
10V*******|_____10 ohms____|
-***********|************************|
|********10 ohms*************10 ohms
|_______*|________________|

don't mind the stars, they're just space fillers.

2007-03-11 05:16:31 · 4 answers · asked by jaw 2

does even a vacuum have energy?
do you realise how difficult it is to frame a question about nothing in english?

2007-03-11 05:03:44 · 16 answers · asked by Anonymous

2007-03-11 04:59:49 · 5 answers · asked by Anonymous

When you go to the fair and ride the Wild Mouse, where do those wild sensations come from?
I am thinking this has to do with sensory and receptors.. 0HhhH the questions my teacher comes up with O_o
Can anyone give me a brief description, answering this question... please ;)

2007-03-11 04:54:44 · 1 answers · asked by skoolgirl 1

2007-03-11 04:47:56 · 2 answers · asked by Anonymous

I believe in a open system, that law wouldn't work, the law specificly says in a closed system. This is for a debate for my school, im debateing the topic, "can matter be created or destroyed" negative and positive, any help would be appreciated. (sources needed please, thanks)

2007-03-11 04:46:23 · 2 answers · asked by nerdx600 1

inertial coordinate system or refrence frame . Is the earth an inertial frame?

2007-03-11 04:38:55 · 3 answers · asked by Grace 2

When you go to the fair and ride the Wild Mouse, where do those wild sensations come from?
I am thinking this has to do with sensory and receptors.. 0HhhH the questions my teacher comes up with O_o

2007-03-11 03:50:13 · 0 answers · asked by skoolgirl 1

can you please give me some situations or examples about the application of electricity in health science???=)

2007-03-11 03:45:09 · 3 answers · asked by Valkyrie 2

I need to know more about pitch, velocity, RPM, hors power, diameter, any thing about propellers. Please tell me how can I buy books or digital books. Pdf files, ... .
Thank you everyone.

2007-03-11 03:39:45 · 3 answers · asked by Anonymous

I need to know more about pitch, velocity, RPM, hors power, diameter, any thing about propellers. Please tell me how can I buy books or digital books. Pdf files, ... .
Thank you everyone.

2007-03-11 03:38:17 · 2 answers · asked by Anonymous

If an earth-sized mass were in the shape of, say, a cone would its gravitational field be the same on all points of the surface as on earth or stronger at the thicker end where an inhabitant would be nearer more matter? Essentially, do non-spherical objects have centres that determine their gravitational field regardless as to the spread of the matter and are the fields equally strong in all directions?

My work gives me no challenge and I trouble myself with random questions in fields in which I have no education/clue.

2007-03-11 03:38:05 · 10 answers · asked by Andrew H 2

2007-03-11 03:14:35 · 5 answers · asked by JACKY M 1

A 5-kg package slides 1.5meters down a long ramp that is inclined at 12° below horizontal. The coefficient of kinetic friction between the package and ramp is μk=0.310 . Calculate the total work done on the package. If the package has a speed of 2.2 m/sec. at the top of the ramp, what is its speed after sliding 1.5m down the ramp???

2007-03-11 03:01:52 · 1 answers · asked by jet 3

I've got 9.6*10^-3, I've been dividing the area of the graphite (using its diameter- pieR^2) by the gardient of a graph, which is resistance times length, i believe i used length as X axis and Resiatance as Y in the graph. I really just need to know could 9.6*10^-3 be right and if not how do you work out the resistivity of graphite.....sorry for reposting

2007-03-11 01:09:04 · 3 answers · asked by Mark 2

Moment is equal to the product of the force and the perpendicular distance from the line of action of the force to the pivot.

So how do we calculate the moment when there are two pivots ??

2007-03-11 00:47:38 · 3 answers · asked by Anonymous

A. It is 100%.
B. It depends on the difference between the exhaust and intake temperatures.
C. It depends on the ratio between the exhaust and intake temperatures.
D. It depends on the intake temperature.

2007-03-10 23:48:20 · 3 answers · asked by ShyGirl 1

A. 1680 cm3
B. 24 cm3
C. 0.41 cm3
D. 0.042 cm3

2007-03-10 23:43:51 · 6 answers · asked by ShyGirl 1

A. 240 kg/m3
B. 267 kg/m3
C. 469 kg/m3
D. 375 kg/m3

2007-03-10 23:42:52 · 1 answers · asked by ShyGirl 1

evaluate the following situation,and decide if an unbalance force is presene?

A) a car turn right without slowing down
B) a spacecraft move in one direction at a constant speed
C) a cyclist coast downhill, going faster and faster
D) a tennis racket hit tennis ball

2007-03-10 23:34:03 · 3 answers · asked by sunny p 1

given: 750.0N-weight of box in the plane
4m- length of plane
.900m- height of plane


I NEED A SOLUTION :(

2007-03-10 22:40:43 · 1 answers · asked by idontreallyknoe 1

I've been listening to the news and stuff and they say that we all need to update our computers in order for the daylight savings time to change on our computers to beable to have them work right. what do you think.?

2007-03-10 22:27:58 · 11 answers · asked by ? 5

does the size of a person ears determine how well he hears and why?

2007-03-10 22:19:52 · 7 answers · asked by ninjatortise 2

2007-03-10 20:52:16 · 7 answers · asked by Anonymous

2007-03-10 20:14:08 · 11 answers · asked by Anonymous