Science & Mathematics - 2 November 2007

Using the Law of Sines to solve the all possible triangles if

Angle A= 111
side a= 29
side b=11

Find the following:
Angle B=
Angle C=
side c=

2007-11-02 14:30:42 · 5 answers · asked by mhicks04 1 in Mathematics

By taking logarithms, find the smallest possible integer, n, for which 4^n < 5^(n-1)

Ive been puzzled over this for ages. Any help is really appreciated!

2007-11-02 14:26:04 · 5 answers · asked by Stevie B 2 in Mathematics

I am wanting to explore robotics, and am wondering what would be an easy starter project in order to build my skills. I was an engineering student, but I decided to give that up because I wanted to actually learn and explore the engineering field instead of just read books about it and do math problems. This project shouldn't be too expensive, and should provide for future expandability. Any ideas?

2007-11-02 14:22:17 · 4 answers · asked by Confused about life 2 in Engineering

Green house effects are necessary to keep the planet habitable, and have been strong in the past. Why is the current rapid change a worry?

2007-11-02 14:17:45 · 7 answers · asked by sdjfhdkjsfgkuae 2 in Astronomy & Space

Give the ground state electron configuration for Br-

I got [Ar]4s23d104p5

Did I work it out right?

2007-11-02 14:17:34 · 3 answers · asked by Jay H 1 in Chemistry

like new discoverys
like "raptors have feathers!"
etc
website would be use ful or books
recent stuff not like the old dinosaur books about their life and how they ate and how tall were day unless something changed

2007-11-02 14:16:05 · 3 answers · asked by Anonymous in Zoology

Directions:
Find all the zeros of the function and write the poloynomial as a product of linear factors. ( what are they asking me to do math matically)

h(x)= x^3-3x^2+4x-2

can anyone show me how i would solve this..thankyou!

2007-11-02 14:15:35 · 4 answers · asked by 2006bye 2 in Mathematics

2007-11-02 14:13:14 · 10 answers · asked by humpty dumpty 1 in Mathematics

2007-11-02 14:10:41 · 15 answers · asked by Dr.X 2 in Geography

2007-11-02 14:08:19 · 2 answers · asked by tessababy992006 1 in Chemistry

2007-11-02 14:07:00 · 2 answers · asked by tessababy992006 1 in Chemistry

2007-11-02 14:06:24 · 2 answers · asked by tessababy992006 1 in Chemistry

2Al+3CuO-----> Al2O3+3Cu2
2H2O--->2H2+O2
AB+CD--->AC+BD
Propane burns in oxygen to produce cardon dioxide and steam.

2007-11-02 14:03:34 · 1 answers · asked by Anonymous in Chemistry

2007-11-02 14:01:42 · 18 answers · asked by Anonymous in Astronomy & Space

2007-11-02 13:59:21 · 44 answers · asked by Anonymous in Astronomy & Space

Can anyone please explain the principle of anion exchange chromatography?

2007-11-02 13:57:05 · 2 answers · asked by Anonymous in Biology

The function f(x)=2x+2x^-1 has one relative minimum and one relative maximum. It is helpful to make a rough sketch of the graph to see what is happening.
This function has a relative minimum at.....
with value.......
and a relative maximum at........
with value ........

2007-11-02 13:53:57 · 3 answers · asked by Ksyha 1 in Mathematics

i thought it was enzymes but i am told it is an organism (cellulose based biopolymer)

2007-11-02 13:52:14 · 2 answers · asked by jin_ale 2 in Chemistry

I know what liters are, and I know that Atm is pressure... but what exactly is liter atmospheres? I need to visualize this... is it the pressure on a liter? ... I know that it is supposed to be the same thing as energy in joules.

Can someone help with an example or an analogy or anything to help me see this please? ... I know the definition, but just need to visualize.

Thanks!

2007-11-02 13:47:14 · 1 answers · asked by db 3 in Physics

Studies have proven conclusively that flouride is an effective tooth decay preventative. As a result, in the late 1960's and 1970s, many communities in the United States began adding trace quantities of flouride to their drinking water supplies. However, strong opposition arose against this "tempering' with the water supply. One of the common arguments was that flourine was known to be a deadly gas. What would be your response to this argument?

2007-11-02 13:44:31 · 2 answers · asked by Anonymous in Chemistry

and it feels like gravity, and so earths gravity is like a constant acceleration, then what are we accelerating away from?
Could it be other galaxies?
Could be creating more space between galaxies?

2007-11-02 13:42:37 · 8 answers · asked by Anonymous in Astronomy & Space

EMail me the answer if you can.

2007-11-02 13:41:33 · 1 answers · asked by Dominic 3 in Other - Science

or something in between. My question is if we evolved, why is there not a simple form of us walking out of the sea every so often. Or all different forms of us in different stages of evolution. Evolution couldn't just stop at some point, as that makes no sense. This is where the theory of evolution hits the road. Isn't it??

2007-11-02 13:41:23 · 11 answers · asked by knowitall 3 in Biology

2007-11-02 13:38:53 · 10 answers · asked by Anonymous in Biology

with equipement . or are they all based on opinion? Is there real proff of black holes and what is the mph of suction speed, any ideas? I mean, has anything ever fallen into one that we know of? thanks

2007-11-02 13:38:16 · 14 answers · asked by Thallasa35 2 in Astronomy & Space

I am trying to state the domain.

2007-11-02 13:36:38 · 5 answers · asked by franbi_1 1 in Mathematics

2007-11-02 13:35:55 · 12 answers · asked by Hi 2 in Other - Alternative

2007-11-02 13:31:40 · 8 answers · asked by Tutor 1 in Mathematics

A car rounds a banked curve where the radius of curvature of the road is R, the banking angle is , and the coefficient of static friction is µ.

(a) Determine the range of speeds the car can have without slipping up or down the road. (Use mu for µ, theta for , and R and g as appropriate in your equations.)

minimum speed _________
maximum speed __________


(b) What is the range of speeds possible if R = 110 m, = 10°, and µ = 0.14 (slippery conditions)?
minimum speed _________m/s
maximum speed _________m/s

2007-11-02 13:29:53 · 1 answers · asked by purple222 2 in Physics

A voltage V across a resistance R generates a current C = V/R. Suppose a constant voltage of 12 volts is put across a resistance that is decreasing at a rate of 0.2 ohms per second when the resistance is 6 ohms.
At what rate is the current changing?

2007-11-02 13:24:37 · 4 answers · asked by wildcat11 1 in Mathematics