Physics - June 2007

wait it is right????

2007-06-27 04:24:02 · 11 answers · asked by Anonymous

2007-06-27 03:28:39 · 13 answers · asked by Anonymous

2007-06-27 02:57:26 · 1 answers · asked by Anonymous

so that the gravitational force that my body exerts on it gets nullified?

2007-06-27 02:52:36 · 6 answers · asked by Anonymous

will it burn, or just gets heated?

2007-06-27 02:50:18 · 5 answers · asked by Anonymous

For ordinary currents, this drift velocity is on the order of millimeters per second. Then how come electrical gadgets and stuff respond immediately ?

2007-06-27 02:46:31 · 5 answers · asked by Anonymous

just imagine a water column. the bottom part of the column will experience pressure due to the water above..when pressure increases volume decreases..so when volume decreases the density should increase...which means that water at the bottom have a higher density than the water above it....is this right?? pls give the sources of your answer also...

2007-06-27 02:41:42 · 5 answers · asked by jr 2

2007-06-27 02:37:24 · 2 answers · asked by gizelle 2

1.) Convert 12km to inches
2.) 15miles/hour to m per/secs
3.) The worlds highest water falls angel falls in Venezuela from top to bottom it measures 3212ft. Express this in kilometers.

2007-06-27 02:20:52 · 2 answers · asked by tHeo 2

when someones asks a question on here you could simply not send a reply when you have nothing of value to offer that rude comments are not needed

2007-06-27 01:39:22 · 11 answers · asked by ? 2

2007-06-27 01:12:51 · 4 answers · asked by Anonymous

I WANT TO WORK OUT HOW MUCH ELECTRICITY WE ARE USING AT HOME FOR EACH APPLIANCE. PROVIDE THE CALCULATION THAT I DID IN PHYSICS ALL THOSE YEARS AGO THAT I HAVE FORGOT.

THANKS ALOT

2007-06-27 00:39:26 · 10 answers · asked by JOHN 3

what are actual forces behind it?

2007-06-27 00:33:03 · 26 answers · asked by Anonymous

plsss... answer my question. i need it as my preparation.. thank you

2007-06-27 00:24:50 · 3 answers · asked by Anonymous

2007-06-27 00:02:10 · 1 answers · asked by >>>jowie<<< 2

A body is acted upon by three forces, F1 of magnitude 5 units in the direction of (6,2,3), F2 of magnitude 3 units in the direction of (3, -2 ,6) and F3 of magnitude 1 unit in the direction of (2, -3, -6).
(i) Obtain the resultant force, F
(ii) Find the magnitude of F
(iii) Find the work done in displacing the body from A(2, -1, -3) to B(5,-1,-1) under the influence of F.

2007-06-26 22:53:05 · 1 answers · asked by Anonymous

Consider this statement of fact: The atoms we now perceive by our senses through the use of sense-enhancing instruments ,like the electron mictoscope and X-ray diffraction devices, were initially an imagined idea, or group of imagined ideas in the minds of Democritus and Leucippus. A t the time these Ancient Greek thinkers lived, there was no scientific evidence that atoms existed, The idea somehow arose in the imagination as they pondered on the nature of reality.

n.b.: This Q could have been also posted in the philosophy category.

2007-06-26 21:56:26 · 5 answers · asked by Anonymous

2007-06-26 21:29:45 · 3 answers · asked by lady mamerlade 1

It is really a question to an answer, here it is:

http://i97.photobucket.com/albums/l216/2RIP/ph.jpg

When Ep = -Ek , why is the kinetic energy being subtracted by 0 besides the fact that it will later in the question remove the negative sign. Are there any supporting evidence for doing this? Please explain.

2007-06-26 19:50:00 · 2 answers · asked by Anonymous

i want this answer from a phsysist

2007-06-26 19:12:03 · 3 answers · asked by bhupesh g 1

I don't know if I am using the right terminology, but I would like to know how much pure energy is contained in the average human? And there are 2 sub questions.
Consider that a person weighing 150 pounds is exploded in a nuclear reaction somehow, as if the person were a nuclear bomb. How large a blast would you get?
Would we simply use Einsteins formula e=mc squared?
Or if we considered the energy released slowly like in a nuclear power plant, how much electricity would be produced by burning all the nuclear material in the average human?
I hope I have asked this in a way that makes sense.

2007-06-26 18:39:43 · 2 answers · asked by Phil H 2

(Full Version)
A Physics student wandered and had the displacements A=85.0-m 32o South of West (vector) and B=96.0-m 36o West of North. Where will the student be with respect to the point of origin? How can he get back to his starting point?
(a) Use parallelogram method
(b) Use Laws of Sines and Cosines
(c) Use component method
(d) Get the component representation of the displacements A and B using unit vectors. Determine the final displacement using unit vectors.

2007-06-26 18:13:31 · 2 answers · asked by Anonymous

A 7.00 g bullet, when fired from a gun into a 1.00 kg block of wood held in a vise, penetrates the block to a depth of 8.00 cm. This block of wood is next placed on a frictionless horizontal surface, and a second 7.00-g bullet is fired from the gun into the block. To what depth will the bullet penetrate the block in this case?

2007-06-26 17:45:34 · 1 answers · asked by Corey E 1

Hi guys we are making investigatory project and I have a question can RAM(Random Access Memory in the computer) produce a sollar cell? If not can u suggest any investigatory project relating to the parts of the computers (alternatives)

2007-06-26 16:54:23 · 3 answers · asked by help 1

A) checking units, B) checking significant figures, C) consulting with a friend, or D) checking to see if the result is reasonable.

2007-06-26 15:31:47 · 4 answers · asked by Josh Muller 1

Hi everyone, why do smart people often study Calculus? Why smartkids or smart peoplestudyCalculus in the Universities? Is Calculus important? Is it applicable to our daily life or in our world?


Because inCllege Calculus is a must take or required course, so people take it. But I doubt that they use it at work. Because most engineers or scientists today concentrate on design and developing softwares, so I don't think they use much Calculus.

2007-06-26 15:22:48 · 10 answers · asked by Anonymous

Say I move a chair from one place to the other. How long does it take until this change of the center of gravity of the earth to have on effect on the motion of particles at the opposite end of the galaxy? It's not instantaneous, is it?

2007-06-26 15:09:47 · 5 answers · asked by Ejsenstejn 2

2007-06-26 14:45:23 · 5 answers · asked by Anonymous

What formula can I use to calculate a range of ALL coordinates (lon, lat) that are within a given distance (ex x=50 miles) from a given set of coordinates (ex. 40.948208, -074.295592)?

Answer example could be all longitude between 30-50 and all latitude between -50 and -100.

The following formula is used to calc the distance between 2 given points

R = earth’s radius (mean radius = 3956 miles)
Δlat = lat2− lat1
Δlong = long2− long1
a = sin²(Δlat/2) + cos(lat1).cos(lat2).sin²(Δlong/2)
c = 2.atan2(√a, √(1−a))
d = R.c

2007-06-26 14:22:54 · 3 answers · asked by nkbsbl 2

previous seconds. True or false? and why

2007-06-26 13:59:57 · 6 answers · asked by magic touch 1