Physics - August 2006

I'm trying to solve a vector problem: A plane whose airspeed is 200 km/h heads due north. But a 100 km/h northeast wind coming from the northeast suddenly begins to blow. What is the resulting velocity of the plane with respect to the ground?

Now, I want to know what "respect to the ground means"...I would be able to solve it if it was "respect to the airplane or wind" but I don't think I've ever heard of "respect to the ground"...

2006-08-28 10:20:20 · 7 answers · asked by Moosehead 2

Is there not always something smaller before you get to nothing? How can you move from something to nothing without that something being able to get just a little smaller before nothing?

2006-08-28 10:19:50 · 8 answers · asked by nobodiesinc 1

building one right next to it. Basicaly what im asking is if you wanted to terraform mars by heating up the planet wouldnt it make more sense to build a mirror/lens closer to the sun then further away from it. Same could go for if you wanted to do the same for the earth if you had a way to use the energy of course. Maybe by putting something that could absorb and store energy near the earth and have the reflecting mirror/lens send light energy to it. :)

2006-08-28 10:13:08 · 3 answers · asked by magpiesmn 6

2006-08-28 10:01:05 · 11 answers · asked by Anonymous

2006-08-28 09:30:09 · 4 answers · asked by brlmnd 1

2006-08-28 09:23:10 · 3 answers · asked by ria 1

2006-08-28 09:18:40 · 13 answers · asked by shadab n 3

2006-08-28 08:57:18 · 4 answers · asked by goring 6

2006-08-28 08:52:30 · 2 answers · asked by goring 6

2006-08-28 08:48:52 · 3 answers · asked by goring 6

2006-08-28 08:40:32 · 9 answers · asked by Anonymous

2006-08-28 08:40:29 · 2 answers · asked by goring 6

2006-08-28 08:39:51 · 12 answers · asked by runfree925 2

I need some information about Italy. Not tourist stuff or goverment stuff but other stuff that has to do with physical science.

2006-08-28 08:39:33 · 4 answers · asked by Anonymous

A small object, which has a charge q = 7.3 µC and mass m = 9.0 10-5 kg, is placed in a constant electric field. Starting from rest, the object accelerates to a speed of 2.0 103 m/s in a time of 0.91 s. Determine the magnitude of the electric field.

2006-08-28 08:27:42 · 4 answers · asked by onewify 1

2006-08-28 08:21:16 · 8 answers · asked by Anonymous

How could you accurately measure the distance between two baseball-sized spheres that are very close to one another (about 1-30cm) but you must not come within 4 feet of the spheres. That is, you cannot touch them or come near them...imagine a forcefield around them. Using light/lasers seems like possible solution, but is there a simpler way? What is the best way to set-up this measurement?

2006-08-28 08:15:18 · 5 answers · asked by Gravity Boy 1

2006-08-28 08:08:47 · 8 answers · asked by goring 6

The torsion balance I'm looking to suspend will weigh about 21lbs. Should I use a monofilament fishing line, metal wire, or does it not matter?

2006-08-28 08:08:15 · 2 answers · asked by Gravity Boy 1

A rectangle has a length of 2d and a height of d. Each of the following three charges is located at a corner of the rectangle: +q1 (upper left corner), +q2 (lower right corner), and -q (lower left corner). The net electric field at the (empty) upper right corner is zero. Find the magnitudes of q1 and q2. Express your answers in terms of q.

2006-08-28 08:07:54 · 2 answers · asked by Nyto 1

2006-08-28 08:06:00 · 6 answers · asked by goring 6

It needs to be a very accurate casting. What materials should I use? I also would like to make a few exact copies of this sphere as well.

2006-08-28 08:05:07 · 2 answers · asked by Gravity Boy 1

go to http://www.xanga.com/phobodobo29 look under the entry GRAPHING PROBLEM
can someone please tell me how to solve it-I have attempted many times but cannot figure it out. just tell me a, b, c, or d, and how u did it. im not just looking for the answer but the method to do it

2006-08-28 07:56:25 · 2 answers · asked by cammiechameleon1 1

2006-08-28 07:33:23 · 13 answers · asked by goring 6

I'm confused; will two objects which are of different masses fall and hit the ground at the same time, always?

So, any objects which fall from the same height will hit the ground at the same time?

2006-08-28 07:24:03 · 28 answers · asked by babychi 4

How could it be done?

2006-08-28 06:56:53 · 25 answers · asked by ? 5

I'm looking for a good 30min-1hr downloadable podcast explaining the basics of "string theory" and similar stuff (M theory etc.) - anyone know of a good site or rss feed?

2006-08-28 06:41:50 · 4 answers · asked by Anonymous

Occupation theory?

2006-08-28 06:36:10 · 3 answers · asked by goring 6

In very simple terms, please, because I'm not much of an expert on physics. Thanks!

2006-08-28 06:34:19 · 6 answers · asked by Anonymous

2006-08-28 06:02:49 · 10 answers · asked by chirag_annemare 1