Science & Mathematics - 3 December 2006

If you find the derivative of a position-time graph, you get a velocity time graph. If you integrate a velocity-time graph, you get a position-time graph. But what do you get if you integrate a position-time graph? I've heard many things including teleportation, time, and three dimensional motion. Thanks in advance.

2006-12-03 04:39:03 · 2 answers · asked by Calculus 1 in Physics

(I) A pharmacist is to prepare 15 milliliters of special eye drops for aglaucoma patient. The eye-drop solution must have a 2% active ingredient, but the pharmacist only has 10% solution and 1% solution in stock. Can the pharmacist use the solutions she has in stock to fill the prescription? If she can, show the amount (volume in milliliters) of the 10% solution and the 1% solution that she would use to fill the prescription.
*************************************************************
(II) The same pharmacist receives a large number of prescriptions of special eye drops for glaucoma patients. The eye drop prescriptions vary in volume but each requires a 2% active ingredient. Help the pharmacist find a convenient way to determine the approximate amounts of the 10% solution and 1% solution needed for a given volume of eye drops.
(hint: since the volume of the final prescription varies, you are not looking for exact amount of 10% or 1% solutions as you did for question #1)

2006-12-03 04:38:03 · 4 answers · asked by debatetopic 1 in Mathematics

2006-12-03 04:37:08 · 7 answers · asked by Anonymous in Astronomy & Space

question1:
A 40.5 kg girl and a 58.6 kg boy are on the surface of a frozen lake, 13.0 m apart. Using a rope, the girl exerts a horizontal 4.30 N force on the boy, pulling him toward her. Calculate the magnitude of the girl's acceleration.

question 2 :
The coefficent of static friction between the floor of a truck and a box resting on it is 0.36. The truck is traveling at 78.6 km/hr. What is the least distance in which the truck can stop and ensure that the box does not slide?

pls help meeeeeee

2006-12-03 04:35:42 · 1 answers · asked by TheKnight 1 in Physics

2006-12-03 04:33:49 · 8 answers · asked by NICOLA L 1 in Engineering

2006-12-03 04:33:44 · 2 answers · asked by Isabel P 1 in Physics

2006-12-03 04:32:43 · 7 answers · asked by eminentgopi 1 in Engineering

How do I find the volume of the solid formed by revolving the region bounded by x= 0, y= 0, y= (6 - x)^1/2 about the x-axis?

I know the answer is pi something... because that's what all the solutions have in my notes.

The teacher gave me the following possibilities.

2p
9p /2
8p
25p /2
18p
49p/2
32p
50p

2006-12-03 04:30:57 · 3 answers · asked by chris 2 in Mathematics

Anyone remember the name of the matrix that can be set up to initially see if a differential equation even has valid values to begin with?

2006-12-03 04:28:24 · 3 answers · asked by Anonymous in Mathematics

--thanks

2006-12-03 04:28:23 · 2 answers · asked by SwordDancer 5 in Engineering

1. AL + CL2---> ALCL3
2. Na + CL2---> NaCL
3. H2 + O2---> H2O
4. Mg + O2---> MgO
5. H2 + N2---> NH3

2006-12-03 04:28:22 · 2 answers · asked by Anonymous in Chemistry

2006-12-03 04:27:45 · 8 answers · asked by Tanasia R 1 in Medicine

A: w(x) = x^4 + x^2 - 1 is an even function.

B: k(x) = (ln x)^2 is an even function.

a. Only A is true.
b. Only B is true.
c. Both A and B are true.
d. Both A and B are false.

2006-12-03 04:26:04 · 3 answers · asked by chris 2 in Mathematics

2006-12-03 04:25:48 · 11 answers · asked by Anonymous in Medicine

Sensible and humane answers only please. I feed the birds and a mouse that visits regularly with his family. The cat knows this and lies in wait aiming to catch either the mouse or birds. As I take pleasure in the birds being in my garden I feel it is my duty to fend for them. It is not possible for my dog to be out there all the time. He frightens the birds away anyhow as he is large and boisterous. Hope you can help.

2006-12-03 04:24:52 · 12 answers · asked by Anonymous in Zoology

an interstae highway is supposed to connect two or more states. but they have them in hawaii. do they plan to build a bridge or maybe a tunnel?

2006-12-03 04:24:11 · 6 answers · asked by Anonymous in Geography

This is the 9 digit problem: Arrange the digits one through nine to form a nine-digit in such a way that the number formed by any two consecutive digits is the product of two single digit numbers.

2006-12-03 04:23:27 · 3 answers · asked by crystalblue129 2 in Mathematics

2006-12-03 04:20:54 · 9 answers · asked by Cap'nJohn 1 in Chemistry

Find the surface area, in square units and correct to the nearest hundredth of a square unit, of the surface of revolution found by revolving the arc segment y = x^2 from (0, 0) to (3, 9), about the x-axis.

The radius would be x².

You're trying to find the circumference of a disk, so it's 2πx².

The slant height is √(1+(2x)²) = √(1+4x²)

∫2πx²√(1+4x²) dx

u = 1+4x²
du = 8x dx
dx = 1/(8x) du
x = √(u-1)/2

So

∫2πx²√(1+4x²) dx
2π∫x²√u 1/(8x)du
π/4∫x√u du
π/4∫√(u-1)/2√u du
π/8∫√(u-1)√u du
π/8∫√(u² - u) du

Then I guess you can do
v = u² - u
dv = 2u du
du = dv / 2u

π/16∫√v/v dv

π/16[2/3v^(3/2)]
π/16[2/3(u² - u)^(3/2)]
π/16[2/3((1+4x²)² - (1+4x²))^(3/2)]

evaluated from x=0 to x=3...

I probably screwed up something.

???

I think the answer is 208.09

a. 3.81
b. 49.42
c. 53.23
d. 208.09
e. 257.51
f. 261.32
g. none of these

2006-12-03 04:20:03 · 2 answers · asked by Olivia 4 in Mathematics

I can just step outside and know if it smells like snow. I can't describe it,but yeah. Can you smell snow?

2006-12-03 04:19:37 · 10 answers · asked by Anonymous in Weather

I would also like to ask why covalent bonds have lower melting points than Ionic ones.

2006-12-03 04:15:09 · 2 answers · asked by Anonymous in Chemistry

Ever watched Sliders on TV? According to the Chaos Theory-based Sci-Fi story, there can be multiple universes existing in their own realities. You can open a wormhole that not only shifts time and space but also realities. What would be your reality on the other side?

2006-12-03 04:13:24 · 15 answers · asked by Necromancer-King 1 in Other - Alternative

Determin the identy of the following element described below.

1.This metal is the mos reactive metal in its period and cannot be found uncombined in nature. Each atom of the element contains 19 protons.

2.This shows the percentages of elements in the earth's crust.
46.6% O
27.7% Si
8.1% Al
5.0% Fe
3.6% Ca
2.8% Na
2.6% K
2.0% Mg
1.6% Other

Excluding the"other" category, what percentage of the earth's crust is
a.alkali metals?
b.alkaline earth metals?

2006-12-03 04:13:16 · 3 answers · asked by rbd fan 1 in Chemistry

1. KCLO3---> KCL + O2
2. NH4NO3---> N2O + H2O
3. Su2O3---> SuO + O2

2006-12-03 04:13:05 · 2 answers · asked by Anonymous in Chemistry

this math problem is cazy can some one plzz help me on it?

y=2/3x {x is squared} - 4/5x
so if you can understand the problem it is Y equals two over 3 X squared minus 4 over 5 X

thanks for yur help

2006-12-03 04:11:48 · 8 answers · asked by monica b 1 in Mathematics

2006-12-03 04:11:47 · 7 answers · asked by nirgun2006 1 in Physics

I always look up in the skies at night, but today I noticed 3 stars in a triangular position to each other, and each of them is flickering quite fast (like a broken lamp). Does this mean that the stars are very close or something else?

2006-12-03 04:11:28 · 3 answers · asked by Neo 1 in Astronomy & Space

What is 0.66666666 with a bar over 0.66 (that goes on and on and never stops) converted into a fraction?

2006-12-03 04:09:01 · 16 answers · asked by hello. 2 in Mathematics

2006-12-03 04:06:45 · 12 answers · asked by Collin T 1 in Earth Sciences & Geology

2006-12-03 04:06:01 · 6 answers · asked by Olly 1 in Engineering