Science & Mathematics - 1 November 2006

2006-11-01 21:12:08 · 3 answers · asked by noni 1 in Weather

If an object's mass increases when it approaches the speed of light, does it equal it's acceleration?

2006-11-01 21:10:55 · 4 answers · asked by Anonymous in Physics

2006-11-01 21:08:20 · 5 answers · asked by Anonymous in Physics

does anybody know the answer of the integral of:

integral ( exp(y^2) )
from -inf to x

2006-11-01 20:57:16 · 4 answers · asked by john 1 in Mathematics

Can someone please help me out? I get stuck at the end...

y= 3sin[2(x+(pi/3))] , domain [-pi, pi]

I get to
x=pi y=3sin(4pi/3)
but I don't quite know how to simplify it futher.
Can you please show working out, Thanks!

2006-11-01 20:55:05 · 3 answers · asked by Anonymous in Mathematics

2006-11-01 20:51:39 · 4 answers · asked by aaron.lattin 2 in Botany

Specifically, I need the diagonal measurement of a 5' by 3' rectangle... but I'd like to know the formula as well, for future reference.

2006-11-01 20:50:18 · 10 answers · asked by aaron.lattin 2 in Mathematics

2006-11-01 20:47:57 · 11 answers · asked by U2 1 in Chemistry

I have a debate going at work, i believe that we have made more progress towards medical breakthroughs within surgery and treatment of terminal diseases in the last 15-20 years than we have in the 80 years previous to that, what is your opinion?

2006-11-01 20:47:53 · 8 answers · asked by andylegendoneill 2 in Biology

2006-11-01 20:47:45 · 5 answers · asked by ...? 1 in Earth Sciences & Geology

2006-11-01 20:40:15 · 8 answers · asked by Anonymous in Astronomy & Space

2006-11-01 20:38:30 · 5 answers · asked by U2 1 in Chemistry

I would like to know cause I asked one of them a question. I was not expecting the answer she gave me.I would say the question but it is a little privet.I like to know if anyone know if she could be right.If anybody knows somebody that dose that typ of work or has gotten a physic reading before.

2006-11-01 20:36:54 · 6 answers · asked by Anonymous in Physics

2006-11-01 20:35:29 · 2 answers · asked by U2 1 in Chemistry

2006-11-01 20:35:21 · 10 answers · asked by Michael1314 1 in Weather

2006-11-01 20:34:08 · 4 answers · asked by Mohammad N 1 in Engineering

which one is smaller ? is the energy in mist higher than steam ?

2006-11-01 20:26:13 · 1 answers · asked by valerie lee 1 in Physics

Are we maybe being a bit like ants sitting on a kitchen table trying to understand the Earth……...

2006-11-01 20:24:40 · 11 answers · asked by abluebobcat 4 in Astronomy & Space

2006-11-01 20:24:28 · 1 answers · asked by shelly 2 in Engineering

1. Which of the following is an inorganic compound?

H2CO2
NaCN
HC2H3O2
NaC2O4
C6H12O6
2. Which of the following is a binary covalent compound?

NO2
NaNO3
C2H5O
CaO
Na2O
3. Which of the following substances is not made of molecules?

NH3
CO
O2
ClO2
CuCl2
4. Which of the following is an organic compound?

CaCO3
SiO2
N2O4
NaC2H3O2
Cu(OH)2
5. Which of the following substances must be covalent?

KBr
CaCl2
Cs2O
NaF
F2
6. Which of the following is a characteristic of covalent compounds?

always contain both cations and anions

made of molecules

liquid forms conduct electricity well

bonding involves transfer of electrons between atoms

usually made of metals and nonmetals

2006-11-01 20:20:37 · 2 answers · asked by Pops P 1 in Chemistry

If so how long would it take? I do not intend doing this of course!!

2006-11-01 20:16:12 · 16 answers · asked by derbyandrew 4 in Physics

What are thermoplastics and what are thermosetting plastics. I need answers.

2006-11-01 20:12:35 · 5 answers · asked by slybaconalec 2 in Engineering

whats the highest peak before mount everest was discovered ?

2006-11-01 20:08:25 · 5 answers · asked by Slim 1 in Geography

Number of times the car ran out of petrol. (More detail given)?
A car ride uses a mean of 7 litres of petrol with a standard deviation of 0.5 litres. Assuming that the amount of petrol used is normally distributed.

i) If the car usually has only 8 litres in its tank, how many times in next 1000 rides will the car ran out of petrol?

After calculation answer comes to 22.8 times. Now should the answer be 22 times or 23 times. My assumption is 22 times as the 23rd time due not occur.

2006-11-01 20:00:31 · 4 answers · asked by prashmanic 4 in Mathematics

Number of times the car ran out of petrol. (More detail given)?
A car ride uses a mean of 7 litres of petrol with a standard deviation of 0.5 litres. Assuming that the amount of petrol used is normally distributed.

i) If the car usually has only 8 litres in its tank, how many times in next 1000 rides will the car ran out of petrol?

After calculation answer comes to 22.8 times. Now should the answer be 22 times or 23 times

2006-11-01 19:59:25 · 4 answers · asked by prashmanic 4 in Mathematics

what city/country? whats the weather like there?
im in Reading, berkshire, UK and its friggin freezing!!!

2006-11-01 19:54:38 · 46 answers · asked by Anonymous in Geography

If we continously change time every fall and spring, and it gets old changing most of your clocks why not just leave it alone since the time will catch up to itself 6-7 months later. Does Alaska change their times depending on sunlight, NO.

2006-11-01 19:51:06 · 4 answers · asked by calito 2 in Earth Sciences & Geology

HELP ME complete the square, and find the roots of the quadratic equation.

5.x2 + 16x = 0

2006-11-01 19:47:44 · 3 answers · asked by pmgstudios 1 in Mathematics

Do you think we will actually have a base on the moon in the near future?

I feel if are going to ever explore our solar system the moon would be the best place to start.

What we could learn there would mirror what we could expect on other planets and moons, we'd learn what does and doesn't work in such a situation.

2006-11-01 19:44:54 · 5 answers · asked by Sean 7 in Astronomy & Space

1.Steve traveled 200 miles at a certain speed. Had he gone 10mph faster, the trip would have taken 1 hour less. Find the speed of his vehicle.

2.The Hudson River flows at a rate of 3 miles per hour. A patrol boat travels 60 miles upriver, and returns in a total time of 9 hours. What is the speed of the boat in still water?


3.A designer attempts to arrange the characters of his artwork in the form of a square grid with equal numbers of rows and columns, but finds that 24 characters are left out. When he tries to add one more row and column, he finds that he has 25 too few characters. Find the number of characters used by the designer.

2006-11-01 19:42:54 · 3 answers · asked by pmgstudios 1 in Mathematics