Science & Mathematics - 28 November 2006

2006-11-28 15:15:04 · 11 answers · asked by Anonymous in Biology

An engineer wishes to design a curved exit ramp for a toll road in such a way that a car will not have to rely on friction to round the curve without skidding. He does so by banking the road in such a way that the necessary force causeinf the centripetal acceleration will be supplied by the component of the normal force toward the centere of the circular path. A) Show that for a given speed of v and a radius of r, the curve must be banked at the angle theta such that tan theta is v^2/ rg. B) Find the angle at which the curve should be banked if a typical car rounds it at a 50 m. radius and a speed of 13.4 m/s

2006-11-28 15:14:09 · 2 answers · asked by Kitana 2 in Physics

compare to Jennifer's? A. Paul can type 1/4 as fast as Jennifer B.Paul can type 1/3 as fast as Jennifer C.Paul can type 3/4 as fast as Jennifer D.Paul can type 1 1/3 times fast as Jennifer

2006-11-28 15:13:43 · 10 answers · asked by apple_bottomz_28 2 in Mathematics

a=2 and r=3

2006-11-28 15:13:00 · 4 answers · asked by Mz. Araseli 2 in Mathematics

For both males and females? How could it be redesigned to be more effective/efficient?

2006-11-28 15:10:17 · 9 answers · asked by Ændru 5 in Biology

of pencils and notebooks?

2006-11-28 15:09:43 · 15 answers · asked by Luke R 1 in Mathematics

Let f(x) = 1 when x is rational and let f(x) = 0 when x is irrational. What is the probablity that f(f(x)) is 1?

2006-11-28 15:07:42 · 4 answers · asked by Anonymous in Mathematics

2006-11-28 15:05:19 · 11 answers · asked by apple_bottomz_28 2 in Mathematics

and P = (2x + 3y - 2)A + (3x + 2y + 5)B
Q = (-x + 4y - 2)A + (3x - 4y + 7)B

find x, y; such that 7P = 3Q.

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Is it so that P & Q are colinear vectors as 7P = 3Q and we need to do something of it? How?

Please help.

2006-11-28 15:04:08 · 2 answers · asked by Sunny 3 in Mathematics

2006-11-28 15:03:57 · 3 answers · asked by Pie!! 1 in Biology

As light passes through glass or water, do the high or low frequencies of light interact more in the process of abosorption and reemission and therfore lag behind.

2006-11-28 15:03:49 · 7 answers · asked by hayzman22 1 in Physics

2006-11-28 15:03:40 · 8 answers · asked by Anonymous in Biology

I have a project and I need deparate help on getting a good website.

2006-11-28 15:02:34 · 3 answers · asked by Richie R 2 in Zoology

2006-11-28 15:01:15 · 3 answers · asked by Anonymous in Chemistry

I just got a prescription filled and the pill in the bottle says Mylan. The drug on the bottle says Nitrofurantoin-marco is anyone familiar with this drug??

2006-11-28 15:00:40 · 6 answers · asked by Anonymous in Medicine

I need help!!! what are some good methods for memorizing theorems???

2006-11-28 14:56:38 · 5 answers · asked by N 1 in Mathematics

If you "Chip" a piece of bone fragment in your shoulder and the a surgeon removes said fragment.Then if you expierience a significant amount of restrictive mobility and,or pain as a result,is there any possibility of regenerating the bone,or fabricating it so that the bone could regain its original integrity?

2006-11-28 14:56:24 · 1 answers · asked by Anonymous in Medicine

I have no issues doing gradients really.

Grad_f(x,y,z) = partial derive(x)i + partial derive(y)j + partial derive(z)k

Then i get tossed f(x,y,z) like this

f(x,y,z) = (sqrt(x^2+y^2+z^2))^n, n>=2

would my steps be to forget about the n>=2 bit, do my normal method of gradient then chuck the n>=2 back in at the end?

Thanks,

2006-11-28 14:55:19 · 1 answers · asked by Anonymous in Mathematics

Well hello there mister raccoon just put the bag of Tortilla chips down and no one gets Hurt

2006-11-28 14:53:30 · 8 answers · asked by Anonymous in Zoology

The season came for ripe apples. On the first day, 1 apple dropped. On the 2nd day...5 apples fell. The next day, 14 apples were lying on the ground, and the 4th day...there were 30 apples.........how many apples would be on the ground on the 10th day and what is the pattern???


everyday after the apples dropped, the little animals would take them, so the numbers aren't the cumulative number of apples falling everyday...

2006-11-28 14:52:34 · 15 answers · asked by jackie N 2 in Mathematics

The Reds and the Cubs are playing 3 games. Each game the probability that the Reds win is 0.53, and the probability of the Reds winning is not affected by who has won any previous games.

What is the probability the Reds win 2 and lose 1?
What is the probability the Cubs win 2 and lose 1?

2006-11-28 14:50:51 · 2 answers · asked by testtaker512 1 in Mathematics

plane
line
point
none of these

2006-11-28 14:50:47 · 1 answers · asked by Anonymous in Mathematics

I want to make a glove that can emit electrical shock through it so when the outside touches thing it shocks them

2006-11-28 14:50:32 · 2 answers · asked by Anonymous in Engineering

I wasn’t clear lol people though I needed help on spell check woops no i mean are they in order for salmon fish? this is for biology notes these are the steps for salmon babies when they develop in their mommy’s stomach



1.) egg
2.) Alevin
3.) juvenile
4.) smolt
5.)ocean floring
6.)adult upstream
7.)homing
8.)spawning
9.)kelt
10.)carcasses

is it in order?

2006-11-28 14:49:16 · 2 answers · asked by Female 4 in Biology

please answer if your up 2 the challenge

2006-11-28 14:49:04 · 5 answers · asked by ♥ Lollie ♥ 5 in Astronomy & Space

2006-11-28 14:48:46 · 6 answers · asked by Anonymous in Biology

2006-11-28 14:48:32 · 2 answers · asked by Jo 1 in Biology

What should we be calling Pluto? And what should we be calling Charon now?

2006-11-28 14:48:06 · 15 answers · asked by Anonymous in Astronomy & Space

how do i show that it is a geometric sequence and find the common ratio and write out the first 4 terms.. :/

2006-11-28 14:47:34 · 3 answers · asked by Mz. Araseli 2 in Mathematics

IS IT?

2006-11-28 14:46:38 · 18 answers · asked by HAILEY 1 in Mathematics