Science & Mathematics - 17 October 2006

i was wondering does anyone out there believe that there will be another space race in the future and who do you believe it will be between?

2006-10-17 19:23:12 · 10 answers · asked by Anonymous in Astronomy & Space

2006-10-17 19:22:20 · 4 answers · asked by amit k 1 in Mathematics

find the equation of the 0 that is concentric with x2+y2-4x-6y+4=0 and having radius of 5....
explain it please ...thanks

2006-10-17 19:20:48 · 4 answers · asked by gen 2 in Mathematics

You could talk about any scientific or technological topics of the future 150 years.

(ps. The Royal Society is/was the independent scientific academy of the UK)
I know what I'd like to talk about. I'm interested in what others might think.

2006-10-17 19:19:42 · 7 answers · asked by amania_r 7 in Physics

2006-10-17 19:17:29 · 12 answers · asked by peekabooh 2 in Mathematics

The moment the ball leaves the pitcher's hand is when the ball is at its max velocity, right? After that it is deccelerating all the way to the plate. I thought it was accelerating to the plate because the ball was at zero velocity in the pitcher's hand and when it's in flight, it has greater velocity than when it left the pitcher's hand, but I think that's wrong.

2006-10-17 19:15:07 · 5 answers · asked by sunseekerrv 3 in Physics

2006-10-17 19:14:57 · 2 answers · asked by acsidekicks 2 in Mathematics

2006-10-17 19:14:48 · 20 answers · asked by JustTalking 3 in Zoology

2006-10-17 19:11:48 · 3 answers · asked by Tiffany H 1 in Other - Science

What is the function of an indicator in a titration?

2006-10-17 19:10:30 · 8 answers · asked by soul2true 1 in Chemistry

2006-10-17 19:08:30 · 5 answers · asked by Anonymous in Chemistry

-looks kind of like a sand dollar but is rubbery and soft like a snail
-looks like an oval with an indentation at top. has a worm like projection(tail?) about 4 cm long.
-almost flat
-entire object is about 8 cm in diameter
-the top side is gray with bumps
-the underside is a deep purple color and has ridges radiating out from a central point like the underside of a mushroom
-was found in wet sand at the beach during low tide in carlsbad.

2006-10-17 19:07:10 · 7 answers · asked by diane c 1 in Biology

the pic i use is 16f873a and i'm doing a 3-phase inverter which is controlled by 3-phase pwm. 2 of the pwm can be produced by the ccp pins. i want to know how to write the code to generate continuous pwm pulse train which is same frequency and duty cycle with the other 2.
thanks a lot

2006-10-17 19:07:03 · 1 answers · asked by declan 1 in Engineering

2006-10-17 19:06:24 · 5 answers · asked by zackz19 1 in Earth Sciences & Geology

2006-10-17 19:05:25 · 2 answers · asked by =]] 2 in Other - Science

Isn't the ball accelerating from the mound to the plate? If so, is the speed displayed by the radar gun an average between the plate and the mound? Or, is this the maximum velocity and the ball is actually decelerating somewhere between the mound and the plate?

2006-10-17 19:00:05 · 3 answers · asked by sunseekerrv 3 in Physics

Given that[C2H5OH(l) + 3O2(g) = 2CO2(g) + 3H2O(g); delta-H of reaction = -1234 kJ] and [CH3OCH3(l) + 3O2(g) = 2CO2(g) + 3H2O(g); delta-H of reaction = -1328 kJ]???

Please show steps to solving this, thanks!!!!

2006-10-17 18:58:35 · 1 answers · asked by Anonymous in Chemistry

It maybe slow or faster than earth time. 0pps.., I really need to Improve my language.

2006-10-17 18:51:07 · 15 answers · asked by Anonymous in Astronomy & Space

A piece of lead with a mass 121.6 g was heated by an electrical coil. From the resistance of the coil, the current and the time current flowed, it was calculated that 235 J (Joules) of heat was added to the lead. The temperature of the lead rose from 20.4 degrees Celsius to 35.5 degrees Celsius. What is the specific heat of the lead?

2006-10-17 18:48:59 · 2 answers · asked by keenan93312 1 in Chemistry

2006-10-17 18:46:32 · 5 answers · asked by Lutfor 3 in Astronomy & Space

2006-10-17 18:44:06 · 7 answers · asked by Anonymous in Astronomy & Space

setting off nuclear underground explosions and now many places reporting earthquakes

2006-10-17 18:40:57 · 9 answers · asked by Debbie S 1 in Earth Sciences & Geology

2006-10-17 18:39:51 · 10 answers · asked by Anonymous in Astronomy & Space

2006-10-17 18:37:52 · 7 answers · asked by albertg1986 1 in Mathematics

A toy car has a Kinetic Energy of 12 Joules. What is the KE after a frictional force of 0.6 newtons acted on it for 5 minutes?

2006-10-17 18:37:46 · 3 answers · asked by Greg P 1 in Physics

2006-10-17 18:34:37 · 4 answers · asked by lala 1 in Earth Sciences & Geology

What kind of rocks must they be?

2006-10-17 18:31:20 · 4 answers · asked by Anonymous in Earth Sciences & Geology

And, are you really sure, we only have 3 primer colour?

2006-10-17 18:29:47 · 5 answers · asked by Anonymous in Physics

when 10.0 mL oof a 1.00 M AgNO3 solution is added to 10.0 mL of 1.00 M NaCl solution at 25C is added to a calorimeter, the temperature raises to 32.6C. If the specific heat of the mixture is 4.18J/gC and the density is 1.00 g/mL, what is the Specific Heat for the reation....

What I did:
I used Mass x specific heat x temperature change
I took 20.00g x 4.18 X 7.4=618.64
since qrxn=-qcal, it should be -618.64J,
or -.61864 kJ

first of all, did I calculate the mass correctly, and secondly, did I do the problem right?

2006-10-17 18:28:47 · 2 answers · asked by Christie 3 in Chemistry

2006-10-17 18:27:53 · 8 answers · asked by kt_greene 1 in Zoology