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Science & Mathematics - 27 January 2007

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Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

2007-01-27 03:52:19 · 9 answers · asked by Anonymous in Chemistry

2007-01-27 03:52:01 · 8 answers · asked by Anonymous in Physics

2007-01-27 03:50:15 · 7 answers · asked by lashypooh1193 1 in Chemistry

2007-01-27 03:49:50 · 14 answers · asked by Anonymous in Physics

like the question say i want to know if there is any relation between the depth of the water and the speed of the wave? if there is what is it and how can you prove it?

2007-01-27 03:49:30 · 10 answers · asked by Anonymous in Physics

0

phil smith is a car salesman. last week his total sales amounted to $27,650.00, and he recieved $1,382.50 in comission. what is his rate of comission?

2007-01-27 03:49:15 · 4 answers · asked by Lynn D 1 in Mathematics

2007-01-27 03:48:33 · 28 answers · asked by TIM O 2 in Astronomy & Space

possible solutions...


y = 12x - 20

y = 12x + 12

y = 3x - 2

y = 3x - 6

2007-01-27 03:48:03 · 3 answers · asked by chris 2 in Mathematics

A sports car moving at constant speed travels 105 m in 4.7 s. If it then brakes and comes to a stop in 4.0 s, what is its acceleration? Express the answer in terms of g's, where g = 9.80 m/s2. (Take the positive direction to be the direction of travel

2007-01-27 03:46:03 · 4 answers · asked by nafiseh g 1 in Physics

2007-01-27 03:45:39 · 12 answers · asked by nanu 1 in Engineering

Okay here it goes....I am having a brain lock right here......I am in school for electronics / computer IT training one of the questions on a hand in - is that I find RT=_____. I have a series parallel combination circut that starts in series with 2 parallel circuts R1 thru R6 they range from 500 ohms to 3.5K ohm resistors across the circut. My IT=10ma. that's all the information I have been given. The formula I surmise is as follows.....R5 + R6 =_____ = 1 OVER = REQ1 1/ + R4 1/ = 1/ = _________ + R2 + R3 = REQ2 1/ + R1 1/ , 1/ = RT.

If someone could tell me if I am getting this right the RT I am getting is 656.03 -6 ohms....... is this possible with these values.... R1 = 3.5 K
R2 = 1.5 K
R3 = 1.2 K
R4 = 1 K
R5 = 500 OHM
R6 = 3.5 K
RT = _______

R1 and R4 are in parallel

Could some one please show me the correct formula? for step 1 of computing this circut.......I am just starting to learn this in IT school and I am having a hard time wrapping my head around this!

2007-01-27 03:45:27 · 5 answers · asked by Boogieman 3 in Engineering

I want to specifically work with animals. I like outdoor work, rather than working inside on a computer and such. Thanks for your help.

2007-01-27 03:45:22 · 4 answers · asked by Drucka 2 in Zoology

2007-01-27 03:45:03 · 16 answers · asked by Anonymous in Physics

I'M GOING TO TAKE THE TEST IN ABOUT TWO WEEKS DOES ANYBODY HAVE ANY OF THE QUESTIONS???? HELP PLEASE

2007-01-27 03:44:27 · 1 answers · asked by Anonymous in Engineering

is this the correct solution?

(36/15)(3^1/2)(2^1/2 + 1)

2007-01-27 03:43:53 · 2 answers · asked by Olivia 4 in Mathematics

Is it because the density is the same?
When calculating mass/volume = density.
If two samples come up with the same density does that mean they are made up of the same substance?

2007-01-27 03:42:17 · 5 answers · asked by Anonymous in Chemistry

2007-01-27 03:42:03 · 5 answers · asked by BigGreen 1 in Geography

Lucy manages a peach orchard on the western slope. Years of experience have shown that if she plants 80 trees per acre, her yield is 100 pounds of salable peaches per tree. However, for each additional tree per acre that she plants, her yield per tree drops by one pound. How many trees per acre will maximize her yield per acre?

possible solutions, which is correct?
80

85

90

95

2007-01-27 03:41:21 · 3 answers · asked by chris 2 in Mathematics

Prove by counter example, that the statement:
cosec x - sin x > 0 for all values in the interval 0< x < Pi
is false

2007-01-27 03:41:19 · 5 answers · asked by Emma C 4 in Mathematics

Trying to do this homework question, but cant figure it out, can any one help please????

You have a lightweight spring whose unstretched length is 4.0 cm. You're curious to see if you can use this spring to measure charge. First, you attach one end of the spring to the ceiling and hang a 1.0 g mass from it. This stretches the spring to a length of 5.0 cm. You then attach two small plastic beads to the opposite ends of the spring, lay the spring on a frictionless table, and give each plastic bead the same charge. This stretches the spring to a length of 4.5 cm.

2007-01-27 03:40:33 · 1 answers · asked by I S 1 in Physics

I realllly need to know this for a science thing. by the way........... trust me THIS IS NOT CHEATING! well, thank you for your time, ......... if you do answer this question.

2007-01-27 03:38:02 · 2 answers · asked by Anonymous in Earth Sciences & Geology

2007-01-27 03:36:32 · 1 answers · asked by angelzz184 1 in Earth Sciences & Geology

2007-01-27 03:36:20 · 2 answers · asked by Anonymous in Astronomy & Space

If gravitons are particles that carry force of gravitation, why don’t they get swallowed by the gravitational pull of black holes before the universe sense gravity?

2007-01-27 03:35:03 · 5 answers · asked by Anonymous in Physics

... lim (x^3 - 1)/(x - 1) =
x=>1


I believe it to be 6 but I'm not 100% sure

2007-01-27 03:34:10 · 5 answers · asked by Olivia 4 in Mathematics

what results would Meselson and Stahl have observed?

How could I diagram the anwser using colored pensils???

2007-01-27 03:34:05 · 2 answers · asked by 000123 2 in Biology

What was that freaky ring around the part of the moon that wasn't showing on last sunday?

2007-01-27 03:31:07 · 8 answers · asked by Anonymous in Astronomy & Space

Can the scientists work on a simple body system in a clone

2007-01-27 03:31:06 · 6 answers · asked by rsudarsanlic 4 in Biology

The top of a vertical fencepost is 3m, 12 cm (3 meters, 12 centimeters) above level ground. At 9 a.m., the shadow of the fencepost is 7m, 32 cm long. At the same time, the shadow of a nearby building is measured to be 99m, 50 cm long. How tall is the building, correct to the nearest cm?

I've had severl solutions so far....

41m, 51 cm

38m, 19 cm

42m, 41 cm

40m, 19 cm

2007-01-27 03:28:12 · 7 answers · asked by chris 2 in Mathematics

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