Science & Mathematics - 27 November 2007

what is the planetary address?

2007-11-27 11:23:41 · 1 answers · asked by Kelli ? 1 in Astronomy & Space

For my forensic science class I have to do some kind of project that would be presented on a poster. The subject can be anything about forensic science. The class is more chemistry based than biology based. I hope you guys can help me with some ideas. I really appreciate it!

2007-11-27 11:20:52 · 5 answers · asked by Anonymous in Other - Science

these functions?

Are the f(g(x)) and g(f(x)) the same? please show work...

2007-11-27 11:20:30 · 4 answers · asked by Rise, Lord Vader 3 in Mathematics

curiousityyy

2007-11-27 11:17:03 · 4 answers · asked by Christie 1 in Chemistry

ll u + v ll^2 + ll u - v ll = 2 ll u ll^2 + 2 ll v ll^2

2007-11-27 11:16:48 · 1 answers · asked by Vince 1 in Mathematics

How would early 20th century measurements of the size and shape of the galaxy have been affected?

2007-11-27 11:16:03 · 3 answers · asked by Anonymous in Astronomy & Space

3x - 2 (X+3) = X


7+2 (X+1) = 2X +9


5- 1/2(b-6) =4


2 (X-3) +5 = 3(X-1)

2007-11-27 11:14:54 · 6 answers · asked by Flordia_Grl 1 in Mathematics

ok here is the info-
the pages in the yearbook are 11 inches long by 8 1/2 inches wide. the yearbook printing cost is calculated by the area of the photographs and printing, so it is necessary to know each photograph's area. one page of the yearbook contains a photograph which makes up the whole page except for a 1 1/4 inch margin on each of its sides. dont forget to remove margins .thank you.


heres the problem-
what is the are of the photograph on the page in square inches?(a picture may be drawn to help sovle this task). show and explain your work please. thank you.

2007-11-27 11:12:39 · 5 answers · asked by ~britbrat~ 1 in Mathematics

1. Solve the equation: 7 x = 42.

A. x = - 6
B. x = 6

C. x = 7

D. x = - 7

2007-11-27 11:10:31 · 21 answers · asked by Anonymous in Mathematics

"Find the mass of exactly 1u in grams. Use Factor label method corresct sig figs and show all work"

I found out that 1u = 1/12 the mass of Carbon -12. So, 1/12th of 12 is 1. So the mass of 1u in grams is simply one. right?

But if I am right? then the problem has been answered, so why should I use the factor label method and sig figs? Did I mis something? Please explain.

2007-11-27 11:06:28 · 1 answers · asked by Anonymous in Chemistry

To the nearest thenth, find the measure of the acute angle that the given line forms with a horizontal line.

y= 5x +3

2007-11-27 11:06:03 · 13 answers · asked by Anonymous in Mathematics

If anyone can help with this problem, your response is greatly appreciated. Thanks!!

An ice cube tray holds 355 g water. If the water initially has a temperature of 31°C, how many kilojoules of heat must be removed to cool and freeze the water at 0°C?

2007-11-27 11:05:47 · 2 answers · asked by Shay W 1 in Chemistry

Carpenters earn an average of $1120 less per month than deigners at a furniture factory in Smithville. The factory employs 3 designers and 15 carpenters. Let x represent the average month pay of a designer.

Which of the following functions correctly shows the relationship between the monthly payroll (P) and the wages of these employees?

(1). P = 3x + 15( x - 1120)

(2). P = 3(x - 1120) + 15x

(3). P = 3(x - 1120) + 15(x - 1120)

(4). P = 3 + x +15 + (x - 1120)

(5). P = 3(x)(15)(x - 1120)

2007-11-27 11:04:48 · 4 answers · asked by Anonymous in Mathematics

at a random point on the line. What is the probability that the break is less than 30 feet from a pole?

I need step by step instructions on how to solve this and other problems like it. Thanks!!!

2007-11-27 11:02:25 · 1 answers · asked by Sharar M 2 in Engineering

A car that's 2460.0-kg is driving at a constant speed of 11.0 m/s along an icy, but straight and level road. While approaching a traffic light, it turns red. Slam on the brakes, wheels lock, tires begin skidding, and the car slides to a halt in a distance of 25.0 m. What is the coefficient of sliding friction (µ) between your tires and the icy roadbed?

2007-11-27 11:02:06 · 1 answers · asked by Anonymous in Physics

I need to determine the location of a movable weight (180 lb(m)) hanging from a beam that will result in equal vertical reactions at either end of the beam.

The left side of the beam (A) is attached to a hinge (or pin if you like). 3ft. in the +x direction there is 420lb(f) in the -y direction. 6ft from that (again in the +x direction) there is 640 lb(f) in the -y direction. Then another 6ft from that is the end of the bar which rests on a roller (point B). So the total length of the beam is 15ft.

Neglecting the weight of the beam I figure the total force in the -y direction is -1240 lb(f). So the reactions at A and B should each be 620 lb(f) in the +y direction right? So then, the total moments are: 620(0)+620(15ft)-420(3ft)-640(9ft)-180(xft)=0 right? I determined that the weight should be 12.666667 ft from the hinge. Did I do this right?

Also, there are no forces in the x direction.

Thanks for any help.

2007-11-27 11:02:05 · 2 answers · asked by Milo 3 in Engineering

It's not a clone. I think it starts with a "g". We talked about it on here a long time ago.

2007-11-27 10:59:15 · 34 answers · asked by Deenie 6 in Paranormal Phenomena

night and i saw the most amazing thing just over head it look like a black triangle there was no sound it was like looking at us it didn't move up on til my friend turn on the flash light and in a sec. it was gone.........now the ??? is are we really alone in this world?

2007-11-27 10:58:13 · 2 answers · asked by sleeps 1 in Astronomy & Space

20.00 mL of 1.364-M HNO3 solution and 100.00 mL of 0.102-M HNO3 solution are combined and then diluted with water until the total volume is 250.00 mL.
What is the molarity of this HNO3 solution?

2007-11-27 10:58:12 · 1 answers · asked by browneyes70199 1 in Chemistry

extraction. And after you pick why should i do it and what are some good resources...

2007-11-27 10:57:38 · 1 answers · asked by kckontagious 2 in Earth Sciences & Geology

2007-11-27 10:57:05 · 13 answers · asked by bearmax7@sbcglobal.net 1 in Mathematics

2007-11-27 10:55:29 · 3 answers · asked by Anonymous in Astronomy & Space

2007-11-27 10:53:35 · 2 answers · asked by Elninotorres 1 in Earth Sciences & Geology

the question is:::

A car is traveling at 50 mi/h when the brakes are fully applied, producing a constant deceleration of 38 ft/s2. What is the distance covered before the car comes to a stop?

please explain w/ answer please!! thanky you

2007-11-27 10:50:16 · 3 answers · asked by Anonymous in Mathematics

2007-11-27 10:49:47 · 2 answers · asked by Anonymous in Astronomy & Space

Okay . I know that insulin is produced by the body when there is high level of glucose molecules in the body. The insulin breaks down the sugar stuffs. But when the body is low on sugar, the body produces glucagon to make the sugar level go up. Okay this is the question-

What if a person has a high level of insulin in their blood stream. Does that mean they won't have enough sugar in the blood stream or does that mean they could be diabetic ??

I assumed that they won't have enough sugar, considering the fact they give insulin to diabetic patients to lower their sugar level. But I am not sure. So please explain to me what that would mean for a person ?

2007-11-27 10:47:33 · 5 answers · asked by Brilliant Queen (BQ)_forever !!! 5 in Medicine

It'd be really helpful. Thanks!

2007-11-27 10:45:11 · 6 answers · asked by milkandcandies 2 in Chemistry

Ok, if someone could also show me how to type fraction bars it would also help so here we go. 6 over 13-b is = to 4 over 2-o.5b
Ok thanks for the help best answer goes to the best answer!

2007-11-27 10:43:13 · 6 answers · asked by Anonymous in Mathematics

it is in canada

2007-11-27 10:41:23 · 2 answers · asked by Brianna. 1 in Weather

2007-11-27 10:39:50 · 5 answers · asked by Anonymous in Other - Alternative