Science & Mathematics - 25 November 2006

2006-11-25 18:42:46 · 10 answers · asked by vincent d 1 in Chemistry

2006-11-25 18:42:01 · 1 answers · asked by Anonymous in Chemistry

2006-11-25 18:41:59 · 2 answers · asked by Anonymous in Chemistry

2006-11-25 18:41:51 · 4 answers · asked by Anonymous in Chemistry

The problem is: In a circus performance, a large 5 kg hoop of radius 3 m rolls without slipping. If the hoop is given an angular speed of 3 rad/s while rolling on the horizontal and allowed to roll up a ramp inclined at 20 degrees with the horizontal, how far (measured along the incline) does the hoop roll?

2006-11-25 18:38:40 · 3 answers · asked by paulinatran10 1 in Physics

2006-11-25 18:33:51 · 6 answers · asked by Derrick 1 in Earth Sciences & Geology

It is the question I was asked at an interview. I want to know how others would respond to it. Thanks a lot... greatly appreciate for your input!

2006-11-25 18:31:45 · 5 answers · asked by cally cally 1 in Medicine

Please give SERIOUS answer with good explanation. Thank you.

2006-11-25 18:30:29 · 3 answers · asked by asknanswer 3 in Weather

2006-11-25 18:28:27 · 4 answers · asked by Anonymous in Chemistry

2006-11-25 18:26:44 · 9 answers · asked by Anonymous in Biology

2006-11-25 18:21:15 · 11 answers · asked by Vishnu J 1 in Zoology

If the net force experienced by the object is increased by a factor of 3.3 and the mass is increased by a factor of 2.5, then the new acceleration would be ___m/s/s??????

2006-11-25 18:16:10 · 6 answers · asked by "G" 1 in Physics

2006-11-25 18:13:14 · 4 answers · asked by Bob R. 6 in Biology

You have 240 feet of wooden fencing to form two adjacent rectangular corrals.You want each corral to have an area of 1000 square feet.Find the possible dimensions of each corral.
Please explain step-by-step, and thanks.

2006-11-25 18:12:28 · 5 answers · asked by dude 1 in Mathematics

The specific heat capacity of iron at 25°C is 4.490×10-1 J/g/K.?

For a 9.75×102 g sample of iron, how much energy is required to raise the temperature from 20.2°C to 28.8°C?
(Assume that the heat capacity is constant over this temperature range.)
What is the molar heat capacity of iron?

2006-11-25 18:12:01 · 1 answers · asked by confused 1 in Chemistry

2006-11-25 18:10:32 · 15 answers · asked by rubben s 1 in Mathematics

is there any website other than www.houseof3d.com/pete/applets/graph or any program i can download on my computer to graph it? or could you just send me the graph? thanks!

2006-11-25 18:02:21 · 5 answers · asked by tell me all!!! 4 in Mathematics

I want the facts, just the facts. Anybody with just the facts out there?

2006-11-25 17:57:51 · 7 answers · asked by ice climber 1 in Engineering

Many scientists believe that life formed in the oceans. Does this mean that the rest of the planet was just barren rock before the first sea creatures crawled from the sea? How did the "seeds" for trees form anyway? Please include any sources. Thank you very much!

2006-11-25 17:53:55 · 6 answers · asked by Michael S 1 in Earth Sciences & Geology

After I eat a large meal, my heart feels like it begins skipping.

2006-11-25 17:53:43 · 4 answers · asked by Anonymous in Medicine

2006-11-25 17:53:16 · 5 answers · asked by insomnia_guy_usa 1 in Medicine

How to do it by Maple?

The figure shows a circle with radius 1 imscribed in the parabola y=x^2 Fins the center of the circle.

help!!!
and thx for helping !

2006-11-25 17:52:14 · 3 answers · asked by ko w 1 in Mathematics

does it really matter?

2006-11-25 17:51:16 · 8 answers · asked by crazzy 4 in Earth Sciences & Geology

How to do this byMaple?

y(y^2-1)(y-2)=x(x-1)(x-2)

1.how many points does the curve have horizontal tangents? Extimate the x-coordinates of these points.
2.find equations of the tangent lines at the points(0,1) and (0,2)
3. find the exact x-coordinates of the points of these points
4. crete even more fanciful curves by modifying the equation

Thx for helping

2006-11-25 17:49:55 · 2 answers · asked by ko w 1 in Mathematics

Alright..Story problem consists of building a path of blocks 1 ft. by 2 ft. The ending path should be 20 feet long, but with the rectangular blocks, [may need to draw picture] you can put them widthwise (makes path 1 foot longer, while still being 2 feet wide) OR lengthwise (two blocks together, also making the path 2 feet wide, but is now 2 feet long.) The goal is to see how many different combinations you can make for 20 ft. path. You make a X,Y table, (X rep. the length of the path in feet, and Y is the number of combos you can make with the blocks) So..X: 1,2,3,4,5,6,7..etc. While Y:1,2,3,5,8,13,21,55,76 (you can se the pattern is adding the first 2 y values to get the third EX 1+2=3; 3+5=8 ..ETC.) Now the hard part is finding a working formula where you can take ANY X value and plug it in to get the correct value of Y...So far all i've seen is that the area of the path is 2(x) and that the X value is the number of blocks used in the combination..any ideas for a FORMULA? THANK YOU!

2006-11-25 17:46:20 · 3 answers · asked by Anonymous in Mathematics

2006-11-25 17:46:12 · 20 answers · asked by krazymagex 2 in Geography

Alright..Story problem consists of building a path of blocks 1 ft. by 2 ft. The ending path should be 20 feet long, but with the rectangular blocks, [may need to draw picture] you can put them widthwise (makes path 1 foot longer, while still being 2 feet wide) OR lengthwise (two blocks together, also making the path 2 feet wide, but is now 2 feet long.) The goal is to see how many different combinations you can make for 20 ft. path. You make a X,Y table, (X rep. the length of the path in feet, and Y is the number of combos you can make with the blocks) So..X: 1,2,3,4,5,6,7..etc. While Y:1,2,3,5,8,13,21,55,76 (you can se the pattern is adding the first 2 y values to get the third EX 1+2=3; 3+5=8 ..ETC.) Now the hard part is finding a working formula where you can take ANY X value and plug it in to get the correct value of Y...So far all i've seen is that the area of the path is 2(x) and that the X value is the number of blocks used in the combination..any ideas for a FORMULA? THANK YOU!

2006-11-25 17:45:12 · 1 answers · asked by Anonymous in Mathematics

2006-11-25 17:44:59 · 6 answers · asked by Michael S 1 in Astronomy & Space

Some people's eyes are open when they go to sleep, which isn't common... why is this?

2006-11-25 17:44:58 · 3 answers · asked by rainbow rider 2 in Biology

2006-11-25 17:42:24 · 2 answers · asked by Strix 5 in Zoology