Science & Mathematics - 15 October 2007

A current of 86mA exists in a metal wire. How many electrons flow past a given cross-section of the wire in 10.1 min?

Thanks for your help!

2007-10-15 09:46:40 · 3 answers · asked by red58 1 in Physics

2007-10-15 09:46:36 · 5 answers · asked by nicola 666 1 in Chemistry

How do I work out the problem

2007-10-15 09:44:42 · 11 answers · asked by Christie S 1 in Mathematics

Why Mercury, Venus, and the Moon do not have significant erosion. Relate erosional activity to planetary size and distance from the Sun.

2007-10-15 09:42:10 · 4 answers · asked by kris2209110 1 in Astronomy & Space

can taking tylenol and atenolol cause drowsiness?

2007-10-15 09:41:39 · 2 answers · asked by kacie18 2 in Medicine

The farest Galazy away from ours ... or should I say the farest Galazy that scientist have been able to see is a little over 12 Billion light years away. They aren't saying that there isnt a galazy further away just that it's the most distant one that they have been able to identify. At this point scientist are saying that is the edge of the known universe.

Does anyone else believe that it is possilble that our known universe is just one of multiple ones that could have been spawned from multiple Big Bangs. Beyond the edge of our Universe ... it may even be 100 billion light years away there could be another Universe with it's on set of Billions and Billions of stars.

2007-10-15 09:40:56 · 13 answers · asked by Big Daddy 1 in Astronomy & Space

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/16.jpg

2007-10-15 09:39:27 · 2 answers · asked by Anonymous in Mathematics

Its VAST, mostly plastic and scummy stuff like you would see in the corner of a lake and its caused by the swirling of the currents such as the gulf stream. I know its there but I cant find it.....

2007-10-15 09:38:26 · 18 answers · asked by Anonymous in Geography

2007-10-15 09:37:43 · 2 answers · asked by Christie S 1 in Mathematics

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/15.jpg

2007-10-15 09:34:56 · 12 answers · asked by Anonymous in Mathematics

Cu(s) +HNO3(l) --> Cu(NO)3 (aq) + NO2(g) + H2O (l)

2007-10-15 09:34:02 · 2 answers · asked by bippidibopiddi 2 in Chemistry

2007-10-15 09:33:19 · 5 answers · asked by andrea 1 in Engineering

Lead has a density of 11.34g/cm cubed and oxygen has a density of 1.81*10 to the -3 power g/ cm cubed at room temperature. How many cm cubed are occupied by one gram of lead?
Please explain how you would do this?
thanks in advance

2007-10-15 09:32:37 · 1 answers · asked by hi 3 in Chemistry

2007-10-15 09:31:44 · 4 answers · asked by Anonymous in Engineering

pluto was the smallest planet but dont give u a right to take it off

2007-10-15 09:31:43 · 8 answers · asked by Brittany H 1 in Astronomy & Space

2007-10-15 09:28:53 · 2 answers · asked by Anonymous in Other - Science

help still in high school senior year

2007-10-15 09:23:55 · 10 answers · asked by maydaneharun 2 in Engineering

Does anyone know how the people of the 17th and 18th century tried to compute the mass of the earth?

2007-10-15 09:21:37 · 1 answers · asked by ? 1 in Astronomy & Space

A window washer drops a brush from a scaf-
fold on a tall office building.
The acceleration of gravity is 9.8 m/s2 :
What is the speed of the falling brush after
1.51 s? ( Neglect drag forces.) Answer in
units of m/s.

How far has it fallen in that time? Answer in
units of m.

2007-10-15 09:20:41 · 1 answers · asked by Sarah B 1 in Physics

two small blocks, each of mass, m, are connected by a string of constant length, 4h and negligible mass. Block A is placed on a smooth tabletop and block B hangs over the edge of the table. The table top is a distance of 2h above of the floor. Block A is then released from rest at a distance h above the floor at time t=0. Express all algebraic answers in terms of h, m, and g.

a). Determine the acceleration of block B as it descends.
b. Block B strikes the floor and does not bounce. Determine the time t1, at which block b strikes the floor
c). Describe the motion of block A from time t=0 to the time when block B strikes the floor
d). Describe the motion of block a from the time block b strikes the floor to the time block a leaves the table
e). determine the distance between the landing points of the two blocks

2007-10-15 09:20:03 · 2 answers · asked by Mika 2 in Physics

and.....as warm air rises what occurs to its temp. and its dew point?

2007-10-15 09:19:57 · 7 answers · asked by andrea 1 in Weather

Suppose that a side a is increasing at a rate of 2 meter/second and c is fixed at 10 meters. Find the rate of change of the length of side b when b=5 meters.

Rate of change =

2007-10-15 09:16:32 · 1 answers · asked by lance3223 1 in Mathematics

could you finish simplifying this for me pleasee??
I'm having trouble finding what can be multiplied to get -2 that you can get 3 by adding as well... .

2007-10-15 09:16:13 · 4 answers · asked by Flair 3 in Mathematics

The fact that water can be broken down into gaseous substances that do not behave at all like water, suggests that water is not an element.

TRUE or FALSE

I think that it is TRUE water isn't an element. The fact that it can be broken down into a gas that doesn't behave like water doesn't matter. RIGHT???

2007-10-15 09:15:36 · 5 answers · asked by LJC 2 in Chemistry

2007-10-15 09:15:32 · 3 answers · asked by rjamosh 2 in Chemistry

block and the surface is .26. A horizontal force F is applied to the 7.29 kg block. The acceleration of gravity is 9.8 m/s/s. Calculate the magnitude of the forces necessary to pull both blocks to the right with an acceleration of 1.71 m/s/s. Assume no slipping between the two blocks. Answer in units of N.

2007-10-15 09:14:35 · 1 answers · asked by sexysaraxx 4 in Physics

2007-10-15 09:14:24 · 5 answers · asked by Terri L 2 in Biology

2007-10-15 09:13:39 · 4 answers · asked by Terri L 2 in Biology

2007-10-15 09:13:28 · 7 answers · asked by jake 2 in Engineering

2007-10-15 09:12:50 · 1 answers · asked by Terri L 2 in Biology