Physics - March 2007

a. .50 ohms
b 2 ohms
c. 120 ohms
d 240 ohms

2007-03-30 09:34:20 · 5 answers · asked by mysterious_qt 2

Total mass of the atmosphere is M = 5e18 kg. Its composiotnion is mostly
nitrogen N2 and oxigen O2 for effective molar mass μ=29 g/mole.

How much energy does it take to increase the temperature of the atmosphere by 1K?
Assume that it has uniform temperature and composition.


Please help me, people...
my dad promised to buy me iPod if I score A on this assignemt.

2007-03-30 09:00:33 · 2 answers · asked by Alexander 6

http://www.caveofmagic.com/zndex.html
its from that website try it!
SOMEONE TELL ME! PLZZ

2007-03-30 07:25:52 · 5 answers · asked by Anonymous

I know one: F=k x q1 x q2/r2 but I don't know how to calculate the angle that is created between two spheres when they're repulsed. Can you help me, or at least show me some web-site where it's explained?

2007-03-30 07:05:43 · 3 answers · asked by Alma K 2

Why the earth is flying without going in an unnormal way.it is just going in the same way as before.Why?

2007-03-30 06:53:25 · 7 answers · asked by Anonymous

We've been stuck on steam since the steam engine.. nuclear and coal use steam to turn turbines.. I'm sure fusion (when it's mastered) will most likely be used to heat water for the same means... the only ones that don't use water to transfer the energy are combustion fuels such as gasoline, solar and wind.. has anyone tried to find ways to convert things such as nuclear directly into usable energy instead of going threw the medium of heat?

2007-03-30 06:47:57 · 3 answers · asked by pip 7

for some reason i have waves on the side but none on the top what are some things i can do to get them?

2007-03-30 06:29:57 · 2 answers · asked by S.MERK 1

pllzzzzzzzzzzzz answer as fast as possible

2007-03-30 06:14:39 · 21 answers · asked by sum 2

If light is indeed the fastest of anything we know,.. how do scientists actually calibrate it? Like,.. do they measure the speed of it bewteen two 'markers',.. or do they use something else entitirely? I know it's said to be 135,000miles per sec,.. but HOW do they know this?

2007-03-30 05:01:39 · 5 answers · asked by wildimagination2003 4

How many of you people like me dont accept relativity?

Has it been confirmed that the speed of light is independent of the motion of its source? If yes what was the experiment if you know!

2007-03-30 04:44:54 · 6 answers · asked by Chaste 2

How tall must a mirror be in order to see your entire body in it? Hint: it does not matter how far away you are from the mirror.

2007-03-30 04:43:24 · 3 answers · asked by Anonymous

2007-03-30 04:27:34 · 5 answers · asked by      7

please answer this ques with reason please thanks a lot. and also this one if possible
can we see inverted images in a plane mirror?
my teacher says it's possible and she's a genius so it must be correct so please give me the reason how it can be formed.
thanks for answering the questions you geniuses.
bye.

2007-03-30 04:24:33 · 4 answers · asked by Anonymous

3.8 x 10-5
1.5 x 10-16
3.8 x 10-16
1.5 x 10-14

do u get this one if you do can you help

2007-03-30 03:41:59 · 4 answers · asked by Sesily E 1

Or, perhaps you would become transparent?

This is obviously a hypothetical question, but I wondered: what would happen if you lost a limb, and were able to regenerate it with atoms already in your body. Would you eventually lose enough atoms (if you kept losing limbs, ha ha) that you would fall apart? Would you become transparent?

What would happen to you?

2007-03-30 01:26:26 · 3 answers · asked by Mr. B 4

2007-03-30 01:24:23 · 11 answers · asked by sfumato1002 3

I made an experiment that involves measuring the volume of the gas formed but I forgot to write down the temperature and the air pressure.The temperature in the room is nearly always the same but the airpressure I can only guess by the meteorology data for the day.So I'm wondering if the pressure outside for that time of day was 1026hPa then could it have been significantly different in the lab room which is not airthight sealed and is 2 storeys off the ground

2007-03-30 01:22:58 · 3 answers · asked by amateurgrower 3

A scientific hypothesis is NOT like a sporting event where the team with the greatest number of points wins.


Are you aware that even ONE observation or experiment , ONE proof against a hypothesis , ONE proof that can not be denied is enough evidence to DISCARD THE HYPOTHESIS???


And guess what people? The Lipid Hypothesis is filled with observations AND experiments that contradict it

2007-03-30 00:57:59 · 5 answers · asked by Anonymous

at the end the pod experiences 16 hours, while the control room experienced couple of seconds. shouldn't it be the reverse?

2007-03-30 00:36:12 · 4 answers · asked by Anonymous

time?

2007-03-30 00:20:34 · 6 answers · asked by photoshop 1

plz

2007-03-30 00:09:49 · 5 answers · asked by hwa 1

are they real or just lies?
really possible to real thousands of words in a minute?

2007-03-30 00:06:51 · 6 answers · asked by Anonymous

A. 7.9 cm
B. 15.8 cm
C. 3.9 cm
D. 18.1 cm

2007-03-29 21:22:58 · 4 answers · asked by Unexpected 1

2007-03-29 19:28:38 · 5 answers · asked by maths maestro 1

The Empire state building was not as old as the towers when it was hit by a plane HOWEVER the technology to make it was surely less advanced than the WTC. How does an aluminum plane do what steel could not to a building? consider the military aircraft used a more volatile fuel than the commercial airliner as well.

2007-03-29 18:52:09 · 10 answers · asked by Anonymous

what is the difference between "electrical permittivity" and "magnetic permeability" ??

2007-03-29 18:43:13 · 2 answers · asked by cooljunkgr8 1

i just wondering about and was hoping to get an accurate answer to settle my curiosity. x]

2007-03-29 18:18:22 · 12 answers · asked by pie_is_yummy62 1

if we consider the eqn, s=r *theta(angle) then
theta = s/r...since the arc and radius is measured in metres...both get cancelled n hence theta should have been dimensionless ie with no unit...

2007-03-29 17:50:55 · 4 answers · asked by early_blossom 2

If it is, how come you you get black if you mix all the colors together? Also, it cannot be white because white is made up of many other colors(spectrum). Anyone know what the true absense of color is?

2007-03-29 17:34:00 · 6 answers · asked by Anonymous

experienced by a cubic meter of water due to the Moon's gravitational pull when the Moon is on the same side of the Earth as the water and when the Moon is on the opposite side of the Earth as the water? (About 12 hours later) What is the force of the Earth's gravity on that quantity of water (i.e. it's weight)?

2007-03-29 17:30:16 · 1 answers · asked by Kimmy D 1