Science & Mathematics - 16 September 2007

lab experiment.

2007-09-16 07:13:09 · 2 answers · asked by Danny P 1 in Biology

2007-09-16 07:12:10 · 5 answers · asked by SueWithTwo 5 in Mathematics

2007-09-16 07:11:48 · 4 answers · asked by ♥♥♥♥ 4 in Physics

2007-09-16 07:11:18 · 2 answers · asked by Anonymous in Chemistry

I you dropped a ball from a 70 feet, how do I calculate the velocity of the ball? How about a calculation for how long it is in the air before it hits ground? And lastly determining a function for the height of the ball t seconds after it's released? Sorry but thanks, this is a tough one........

2007-09-16 07:11:01 · 3 answers · asked by Cutekow 2 in Physics

A rectangle is drawn with its lower vertices on the x axis and its upper vertices on the curve y= e^-2x
Write down an expression for A in terms of x
Find the maximum value of A
Justify your answers in both cases.
Thanks a lot.

2007-09-16 07:10:04 · 1 answers · asked by Anonymous in Mathematics

x:2 4 6 8 10 and what would be the next ordered pair?
y:4 16 36 64 100

2007-09-16 07:09:21 · 9 answers · asked by cdlukens12 1 in Mathematics

2007-09-16 07:03:39 · 7 answers · asked by godgod 1 in Mathematics

2007-09-16 07:02:49 · 4 answers · asked by Anonymous in Physics

Answer the ones you can

1) Density= mass/volume
mass= .5 gram
volume= 6 liters
find density

2) Find the Volume for the Cone(v= 1/3 • π • r² • height)
height= 15 inches
diameter= 9 inches

3) Find the Volume for the Piramid (v= 1/3bh)
height= 9
base=42

4) Find the Volume for the Cylinder (v= π • r² • height)
volume= 15 inches/liters
diameter= 6

5) Sphere: (v= 4/3 • π • r³)
volume= 36
find the radius

Thank you.

2007-09-16 07:02:39 · 2 answers · asked by Anonymous in Earth Sciences & Geology

Find Σx for the following set of numbers: 1/5,2/5,-3/5,3/5,4/5,1
a. 2
b. 1
c. 1/5
d. 4/5

2007-09-16 07:00:47 · 5 answers · asked by little D 2 in Mathematics

2007-09-16 07:00:22 · 7 answers · asked by wik 2 in Astronomy & Space

please anwser by september 17

2007-09-16 06:59:21 · 3 answers · asked by BOY 7777 1 in Earth Sciences & Geology

my child is in the 8th grade in 9th grade math she needs help but i dont know how to do it please help

2007-09-16 06:59:15 · 10 answers · asked by ..l* 2 in Mathematics

I need something fun and hands on that has something to do with physics, maybe even something that isn't the old static electricity or magnets demonstration. Someone mentioned to me paper airplanes but i was thinking of maybe bubbles or something. Any help would be very much appreciated.

2007-09-16 06:58:59 · 2 answers · asked by Voldemort 2 in Physics

Factor.

If you do not want to tell me what the answer is, please tell me how to solve...because I can't figure it out. But, if I understood what to do, I could answer it myself.

2007-09-16 06:58:49 · 3 answers · asked by Anonymous in Mathematics

Okay, i'm completely lost on this question. As much as I know, is that on a 2-d plane, you can find the X and Y component using sin, and cos. Then find the length of the vector using pathagrean theorem. However right now I have a questions saying:

"A ferryboat transports tourists among three islands. It sails from the first island to the second island, 4.94 km away, in a direction 37.0° north of east. It then sails from the second island to the third island in a direction 57.0° west of north. Finally, it returns to the first island, sailing in a direction 28.0° east of south."

But i'm completely lost with how to start it.

2007-09-16 06:56:43 · 1 answers · asked by phrozenwarrior 3 in Physics

2007-09-16 06:50:01 · 6 answers · asked by -- 1 in Mathematics

why does no other prime number end in 5? please can u explain your answer?

2007-09-16 06:49:23 · 18 answers · asked by noname 2 in Mathematics

2007-09-16 06:48:59 · 7 answers · asked by Anonymous in Biology

2007-09-16 06:48:15 · 2 answers · asked by -- 1 in Mathematics

but cant seem to find one that is very explanatory on how to use it and what type of data it needs. I also am confused about the type of data I need and where to get it. I am trying to view the elevation in 3d of my town. Google Earth doesnt provide the depth I need in viewing this data. Any suggestions?

2007-09-16 06:48:09 · 1 answers · asked by DrDave 7 in Earth Sciences & Geology

2007-09-16 06:46:58 · 3 answers · asked by -- 1 in Mathematics

Draw a diagram showing vectors a and b and the resultant.

2007-09-16 06:46:15 · 1 answers · asked by Anonymous in Physics

a stone is thrown upward from the top of a building at 25 degree angle to the horizontal with an initial speed of 15 m/s. if the stone was in the air (free falling?) for 3s how tall is the building?

2007-09-16 06:44:06 · 1 answers · asked by Captain Whiskerboy Litterbox 3 in Physics

2007-09-16 06:43:58 · 1 answers · asked by Anonymous in Physics

Hello everyone,

Given that wood chips float on top of lakes (correct me if I'm wrong, I haven't been near one in awhile), how do you measure the volume of wood chips without using volume displacement? Can you measure it, or is that just too unreliable since wood chips come in a bunch of dimensions?

2007-09-16 06:42:25 · 2 answers · asked by Oompaloompa 2 in Physics

2007-09-16 06:42:06 · 6 answers · asked by Anonymous in Chemistry

2007-09-16 06:42:05 · 4 answers · asked by atlantasfnst2004 1 in Astronomy & Space

A ball is rolled up a long, sloping driveway with an initial velocity of 5 m/s. The absolute value of the ball's acceleration is 3 m/s2. Assume the ball's initial position is zero and the uphill direction is positive.

Find the ball's position (in m) every second from t = 0 to t = 6 s.

2007-09-16 06:41:34 · 2 answers · asked by Anonymous in Physics