Science & Mathematics - 19 November 2006

Apart from that, I would also like to know, how food can affect the test. For example, after 8 hours of fasting, the test gives me a reading of 5.0. After the test, I take a chocalate. Half an hour later, I do the test again. Will the reading remain the same, or it will be higher. How fast will the sugar enter our blood?

2006-11-19 15:10:00 · 9 answers · asked by English Learner 2 in Medicine

solve the system of equations: 2x-y+z=-2 x+2y-z=6 3x+y-2z=0 (By Determininates only) D[ ] Dx[ ] Dy[ ]

2006-11-19 15:09:51 · 3 answers · asked by SphinxEyez999 2 in Mathematics

So -
if a = b, then
a^2 = ab
a^2 - b^2 = ab - b^2
(a + b) x (a - b) = b x (a - b)
(a + b) x (a - b) / (a - b) = b x (a - b) / (a - b)
a + b = b
since a = b, substitute b for a, then
b + b = b
2 x b = b
2 x b / b = b / b
2 = 1

2006-11-19 15:08:48 · 7 answers · asked by Anonymous in Mathematics

If you can't hear it, try closing your eyes, eliminate all the other noises that you hear and focus on the "static" sound.

2006-11-19 15:06:55 · 7 answers · asked by Bow 1 in Other - Science

2006-11-19 15:06:29 · 4 answers · asked by Avery H 1 in Zoology

what is

2x=5-7x=15


and



32=2n-3n+5n



Thanks

2006-11-19 15:05:53 · 15 answers · asked by One 2 in Mathematics

Solve.......4sinΘ - 3cosΘ = 2

2006-11-19 15:03:05 · 3 answers · asked by BiggBoss05 2 in Mathematics

The half-life of plutonium-239 is about 24,000 years, so we can expect some of the plutonium produced in recent decades to still be around 100,000 years from now.

2006-11-19 14:57:55 · 7 answers · asked by RITA 1 in Engineering

Can someone help me with my precalculus problem? Can you please read the following problem and figure out the?

Can someone help me with my precalculus problem? Can you please read the following problem and figure out the equation for me along with how you figure this out?


A tsunami (commonly called a “tidal wave” because of its effect is like a rapid change in tide) is a fast moving ocean wave caused by an underwater earthquake. The water first goes down from its normal level then rises at an equal distance about its normal level, and finally returns to its normal level, the period is about 15 minutes.

Suppose that a tsunami with an amplitude of 10 meters approaches pier Honolulu, where the normal depth of water is 9 meters.

2006-11-19 14:55:46 · 5 answers · asked by jordan21s 1 in Physics

2006-11-19 14:55:34 · 4 answers · asked by shyshy 1 in Engineering

I dont understand my physics homework at all

Should i just quit ive already done all i could do?

2006-11-19 14:54:59 · 9 answers · asked by clayzer08 1 in Physics

What fraction will be left after 1000 years? 2000 years? 4000 years?

2006-11-19 14:54:31 · 5 answers · asked by RITA 1 in Engineering

2006-11-19 14:52:49 · 11 answers · asked by Anonymous in Mathematics

2006-11-19 14:52:31 · 1 answers · asked by Ozzie 1 in Chemistry

2006-11-19 14:51:38 · 10 answers · asked by kstoners1 1 in Physics

Why would some potatoe slices float and others sink in a salt water solution when left overnight?

2006-11-19 14:47:23 · 3 answers · asked by Samdog2 3 in Biology

what evidence is there on the physical world map that the Andes mountains are younger than the Appalachian mountains?

2006-11-19 14:41:47 · 7 answers · asked by da_cris193 3 in Earth Sciences & Geology

2006-11-19 14:40:37 · 2 answers · asked by Anonymous in Biology

it is given that there the air is composed of 78% nitrogen and 22% oxygen, so inevitably, some magnesium nitride will form during the oxidation of a strip of magnesium ribbon. but if not all the magnesium nitride is decomposed, then will the mole ratio of Mg to O be too high or too low and why?

2006-11-19 14:39:24 · 2 answers · asked by Lyn 1 in Chemistry

|10 - 4x |
| x2 -7x +10 | >3 NOTE!! (its something like this, x2 by the way is suppose to be x square. this by the way is inequalities in calculus)

2006-11-19 14:38:57 · 4 answers · asked by n0V@!CE 1 in Mathematics

Kilimanjaro, Tanzania is at equator and has peaks covered with snow whole year around and have arctic like atmosphere
http://www.siyabona.com/africa_kilimanjaro.html

2006-11-19 14:37:52 · 4 answers · asked by Rule Breaker 1 in Earth Sciences & Geology

Been trying to do this problem but no luck, can ya help me, Thanks.

In this problem, you will be asked to analyze portions of a famous "thought experiment." To explain the orbital motion of the Moon, Newton imagined a cannon that could fire a cannonball horizontally at a great speed. He reasoned that the cannonball's motion was fundamentally the same as the Moon's. He linked projectile motion with orbits, bringing celestial bodies into the realm of everyday experience.

Consider the Earth to be a perfect sphere of radius r = 6.38×106 m. Imagine that the cannon is mounted on a tower 125 meters above the surface of the Earth. Ignore, as Newton did, air resistance, mountains and the motion of the Earth.

The cannon fires the cannonball horizontally, tangent to the Earth's surface. The faster the cannon fires the ball, the farther it goes before striking the ground. You wish to fire a ball at a speed so great that it never hits the ground: The spherical Earth curves down and away from it at exactly the same rate at which it falls. In this scenario the cannonball will describe a circular trajectory, circling the Earth at a constant height of 125 m. It will return to strike the cannon in the rear.

To determine the necessary speed, consider what happens during the first 1.00 km of horizontal displacement of the cannonball. You will calculate the vertical displacement, using the curvature of the Earth.

(a) Suppose you draw a line tangent to the Earth's surface at the location of the cannon tower, and extend it exactly 1.00 km in the direction of the cannonball's path. What is the angle θ (in radians) that this line segment subtends at the center of the Earth? (b) You can draw a right-angled line from the end of the red segment down to the ground in order to measure the "fall-away" y of the Earth's surface. This very nearly equals the opposite side of a triangle whose base angle is θ/2. Use tan θ/2 in an equation to approximate the Earth's vertical fall-away y in a horizontal distance of 1.00 km (state your answer as a positive number). (c) How fast must you fire the cannonball so that its fall after one horizontal kilometer equals the fall-away of the Earth? (d) Newton used the cannon as a "thought experiment" to explain (circular) orbital motion. Why is the trajectory of the cannonball not parabolic?

2006-11-19 14:34:13 · 2 answers · asked by oscarv_56 1 in Physics

My 12 year old son asked this question while in the xray department and no one could tell him - does anyone know?

2006-11-19 14:33:43 · 15 answers · asked by fireside_jo 3 in Medicine

2006-11-19 14:30:04 · 9 answers · asked by Chase 4 in Astronomy & Space

2006-11-19 14:29:57 · 8 answers · asked by shaggy 2 in Astronomy & Space

2006-11-19 14:28:57 · 1 answers · asked by arthurbc1 6 in Engineering

2006-11-19 14:27:43 · 7 answers · asked by wanda_brown62 1 in Mathematics

im doing a report on photosynthesis and dont really understand what the photosytems really mean, please explain each the difference between them. Thanks in advance!!

2006-11-19 14:23:43 · 4 answers · asked by nick n 1 in Botany

2006-11-19 14:23:25 · 4 answers · asked by Mr. Knowledgeable VI 7 in Geography

Mushrooms often sprout from soil in rows or cirlces that are commonly called fairly rings. How would you explain this formation?

2006-11-19 14:19:25 · 6 answers · asked by Anonymous in Biology