Physics - March 2007

2007-03-18 19:00:39 · 4 answers · asked by kornbread1122002 1

Three negative charges (all similar) of q are 5microcoulombs. These lie on a circle with a radius of 2.m at angles 30, 150 and 270. What is the resultant electrical field in the center of this circle?

2007-03-18 18:58:04 · 3 answers · asked by ☆ 2

2007-03-18 18:46:57 · 2 answers · asked by Anonymous

2007-03-18 18:38:47 · 1 answers · asked by iuelph 1

There is no wind. The fox curls into a tight ball as soon as he leaves the cliff edge. There is a deep pool of water extending between 50 meters from the cliff and 100 meters from the cliff.

Does the fox land in the water?

2007-03-18 18:29:46 · 6 answers · asked by Anonymous

Four point charges are put at the corners of a square with a length, x. Charge Q1 is the only positive charge in the bottom left-hand corner. Derive the equation to find the resultant force on the positive charge (Q1)

2007-03-18 18:08:07 · 1 answers · asked by ☆ 2

http://img174.imageshack.us/img174/7853/lastscanxz1.jpg

My text book says 7.3 x 10^3 m/s^2 [7.5 N of W]
I assumed the answer was rounded but the answer i got was in a totally different direction.

2007-03-18 17:53:17 · 1 answers · asked by fye 1

when the radio is tuned to a station at 570 kHz.
(a) What must be the capacitance for a station at 1600 kHz?
pF
(b) What is the inductance (assumed constant)?
µH

2007-03-18 17:46:53 · 2 answers · asked by Jade m 1

i was wondering if you pour water down a spiral column, does it get faster than if the same water was to flow down a straight vertical drop?

2007-03-18 17:45:11 · 3 answers · asked by Anonymous

Time and space go together, now I'm lost. Where's Einstein when you need him?

2007-03-18 17:39:01 · 2 answers · asked by Anonymous

a)energy
b)weight
c)mass
d)all of these
e)none of these

2007-03-18 17:31:50 · 4 answers · asked by cesar i 1

How do you do a circumference of a balloon. Do you put a string around the width of the balloon and measure it in cm or do you do the width and length of a balloon and add it?

2007-03-18 17:23:48 · 3 answers · asked by Bri 3

Why three phases? Why not one or two or four?

2007-03-18 17:09:01 · 2 answers · asked by anami_mahanta 1

2007-03-18 16:55:12 · 4 answers · asked by Anonymous

do you? i strongly believe in it, but is it just too far fetched? i am a total science geek and love physics, so i want to hear others' thoughts on it.

2007-03-18 16:51:55 · 6 answers · asked by h.pfanatic 2

How do you flip K= 1/2 mv^2 around to get your speed?

2007-03-18 16:31:55 · 2 answers · asked by christy r 1

does anyone know

2007-03-18 16:12:28 · 6 answers · asked by Anonymous

2007-03-18 16:11:06 · 9 answers · asked by monarenee 2

2007-03-18 16:07:25 · 4 answers · asked by Zefram 2

The problem with Pi comes to mind, along with a few other mysteries.

2007-03-18 16:06:07 · 2 answers · asked by Frederick 1

2007-03-18 15:53:17 · 4 answers · asked by Anonymous

In the following statement: There is 10 000 Ci of radiation; what does the abbreviation Ci stand for, where does it come from, and what does it mean(how is it measured)?

2007-03-18 15:51:16 · 1 answers · asked by ¤Elva¤ 4

So if Einstiens theory holds true, and I had a vessel capable of traveling near the speed of light, could I live long enough to reach a location that is hundreds of light years away? Would all my biological functions slow down as my speed increased?

2007-03-18 15:50:18 · 12 answers · asked by Mike B 2

I find it interesting that neutrinos can shift form as they travel through space, solids, as measured in heavy water facilities...

Some have asserted that neutrinos are the fundamental commonality in the universe.... even with religious implications ( by the religious)...

Your thoughts?

2007-03-18 15:49:17 · 8 answers · asked by Anonymous

2007-03-18 15:22:36 · 7 answers · asked by Anonymous

A uranium nucleus (mass 238 u), initially at rest, undergoes radioactive decay. After an alpha particle (mass 4.0 u) is emitted, the remaining nucleus is thorium (mass 234 u). If the alpha particle is moving at 0.0550 times the speed of light, what is the recoil speed of the thorium nucleus? (Note: "u" is a unit of mass; it is not necessary to convert it to kg.)

2007-03-18 15:06:02 · 2 answers · asked by Anonymous

2007-03-18 14:44:35 · 3 answers · asked by lolavonb 2

If it starts from rest, how long will it take to acquire a speed one-tenth that of light? How far will it travel in so doing?

2007-03-18 14:27:27 · 2 answers · asked by vietxpridex92 1

A 10 kg block being held at rest above the ground is released. The block begins to fall under only the effect of gravity. The block falls into a 10 m deep well. The block is traveling at 10.4 m/sec just as it reaches the bottom of the well. At what altitude (in m) was the block released?
a) 14.6
b) 10.5
c) 8.6
d) 6.7
e) 5.3
f) 22
g) 27
h) 30

2007-03-18 14:24:47 · 3 answers · asked by flaca61680 1

Can someone explain to me how to expand a single clock circuit to be able to time a 100m dash which typically takes 10s to a precision of 1/100s.

2007-03-18 14:21:21 · 1 answers · asked by Fred 1