Science & Mathematics - 19 September 2007

The original statement must be true.

The original statement must be false.

Not enough information

2007-09-19 11:04:51 · 3 answers · asked by Mike H 2 in Mathematics

1) The coarse adjustment knob is used to ...

A. regulate light
B. concentrate light on the specimen
C. focus with the high power objective
D. focus light with the low power objective


2) A compound microscope differs from a simple microscope in that a compound microscope has ...

A. two eyepieces
B. two lenses
C. light sources
D. objectives

3) Which of the following is NOT part of the light system of the microscope?

A. the mirror
B. the diaphram
C. the condenser
D. the nosepiece

2007-09-19 11:02:52 · 5 answers · asked by mz. * 1 in Biology

at what temperature are both the Fahrenheit and Celsius the same?

2007-09-19 11:02:47 · 9 answers · asked by Trey C 1 in Earth Sciences & Geology

i need it by 6:35

2007-09-19 11:02:24 · 3 answers · asked by Anonymous in Earth Sciences & Geology

If three points do not lie on the same line, then they are not collinear.

If three points are collinear, then they lie on the same line.

If three points are collinear, then they are coplanar.

If three points are not collinear, then they do not lie on the same line.

2007-09-19 11:00:52 · 3 answers · asked by mike 1 in Mathematics

2007-09-19 10:59:05 · 5 answers · asked by jevaughn campbell 1 in Physics

who are some people that made human body dicoveries from the 1900s to the present?

2007-09-19 10:57:36 · 1 answers · asked by colo 2 in Biology

2007-09-19 10:56:32 · 11 answers · asked by Anonymous in Astronomy & Space

2007-09-19 10:51:46 · 10 answers · asked by step 2 in Chemistry

Geologist are on the way to investigate what some are descriping as a meteorite crater in Peru.Local who when to the crater claim to be sicken by gases from the crater.whats your take?

2007-09-19 10:50:38 · 2 answers · asked by Dragons Slayer 7 in Earth Sciences & Geology

What is the net resistance of the circuit connected to the battery in Fig. 19-41? Each resistance has R = 1.8 k.

Click on the link below. It will bring up the figure of 19-41. There are 12 V in this problem.

http://i24.photobucket.com/albums/c39/immeteen/19_33.gif

2007-09-19 10:49:06 · 4 answers · asked by Jessie L 2 in Physics

A person leaves home and walks due west for a time and then walks due north.

a- The person walks ten miles in total. If W represents the (variable) distance west she walks, and D represents her (variable) from home at the end of her walk, is D a fuction of W? Why or why not?
b- Suppose now that X is the distance that she walks in total. Is D a function of X? Why or why not?


PLEASE DO NOT USE COS OR TAN. I KNOW YOU HAVE TO USE THE DISTANCE FORMULA BUT I DON'T KNOW HOW TO APPROACH THE PROBLEM

THANKS A LOT!

2007-09-19 10:49:04 · 4 answers · asked by JUST ME 1 in Mathematics

dealing with a chem lab

2007-09-19 10:48:52 · 7 answers · asked by britt 1 in Chemistry

2007-09-19 10:48:39 · 3 answers · asked by Anonymous in Biology

2007-09-19 10:43:49 · 8 answers · asked by pinky 1 in Physics

5/12

11/16

2007-09-19 10:43:26 · 11 answers · asked by Anonymous in Mathematics

what is a good way for me to remember sodium's atomic symbol:Na?
need answers in 3 hrs

2007-09-19 10:42:36 · 3 answers · asked by A 4 in Biology

If a velocity-time curve is a straight line parallel to the t-axis, what can be deduced about the acceloration

2007-09-19 10:42:30 · 2 answers · asked by Anonymous in Physics

On my homework I am asked to compute the derivative using the defintion of the derivate, and then later am asked to interpret the derivative by plugging in a number. Here is what I had to derive:

h(x)=3x-7 using definition of derivatives I get:

h'(x)=lim (1/h)[g(x+h)-g(x)] = lim (1/h)[3(x+h)-7-(3x-7)]
h->0 h->0

=lim (1/h)[3x+3h-7-3x+7] 3x and -3x cancel, so do 7's
h->0

=lim (1/h)[3h] the h's cancel so I get 3/1
h->0

therefore h'(x)=3 here comes the confusing part

I am asked to compute equation of tangent line to
h(x)=3x-7 at x=-13
I know tangent line eq. is y= f(a)+f ' (a)(x-a)
if we say that f ' (a) is h ' (-13) and a is -13, how in the world do I plug in a -13 into h'(x)=3 ?? Is the answer always 3? I am guessing it is constant since h(x)=3x-7 looks like eq-n of a straight line, but I need confirmation.

2007-09-19 10:42:21 · 5 answers · asked by pyrojelli 2 in Mathematics

pleas help!!!, itis a really hard question

2007-09-19 10:41:50 · 11 answers · asked by rachel 1 in Astronomy & Space

2007-09-19 10:39:03 · 2 answers · asked by Anonymous in Physics

2007-09-19 10:38:10 · 3 answers · asked by Anonymous in Mathematics

helplllllllllllllllllllllllllllllllll

2007-09-19 10:37:57 · 2 answers · asked by laila_123nabi 2 in Biology

What can you say about the amount of hydrogen ions relative to the amount of hydroxide ions in a solution that has a pH of 2?

2007-09-19 10:37:53 · 3 answers · asked by britt 1 in Biology

a kind of bridge hung from cables, what is it?

2007-09-19 10:37:16 · 4 answers · asked by Anonymous in Engineering

F**king 10 pts to anyone who gets it rite

2007-09-19 10:36:22 · 1 answers · asked by Anonymous in Physics

2007-09-19 10:34:09 · 4 answers · asked by Anonymous in Astronomy & Space

x^2+2x point(-3,3)

also find an equation of the tangent line


please explain how to do it so i can learn, my professor does not explain even when asked, his response is to look it up in the book. please help thanks

2007-09-19 10:33:44 · 4 answers · asked by ccutestuff2001 2 in Mathematics

continue from question:eyes

a.blue must be dominant
b.blue must be a recessive trait carried by both parents
c.brown must be a recessive trait carried by both parents
d. the parents must not be her biological parents

2007-09-19 10:33:10 · 5 answers · asked by Lil_Mommy 1 in Biology

2. convert 3 feet to centimeters
3) convert 3.5 lb. to grams

using fractions
ex.
984 ft = 12 in/1 ft = 11808
i just dont know how to do it for this

2007-09-19 10:32:14 · 2 answers · asked by Anonymous in Mathematics