Science & Mathematics - 26 August 2006

2006-08-26 16:02:42 · 3 answers · asked by mirothana06 2 in Biology

alright so im real stuck on this one. somethings just not clicking with me. any help would be much appreciated. thanks!


Use the position function s(t) = -4.9t^2 + 150
which gives the height (in meters) of an object that has fallen from a height of 150 meters. the velocity at time t = a seconds is given by

lim [s(a) - s(t)] / [a - t]
t->a


Find the velocity of the object when t = 3


thanks again :)

2006-08-26 16:02:11 · 3 answers · asked by lebeauciel 3 in Mathematics

they just sent a satilite to go investigate Pluto, so why did they deplaneterize her?

2006-08-26 16:00:42 · 23 answers · asked by sillyredhead 4 in Astronomy & Space

Two clynder collectors- one open, one closed. Water is pumped, only by the force of the creeks flowing water

2006-08-26 16:00:10 · 4 answers · asked by Anonymous in Engineering

2006-08-26 15:58:49 · 10 answers · asked by Waldo 2 in Biology

2006-08-26 15:58:31 · 15 answers · asked by Anonymous in Physics

You know, while astronomy is at it. Could not Titan be a planet if it wasn't orbiting Saturn?

2006-08-26 15:57:59 · 8 answers · asked by Mr. Bodhisattva 6 in Astronomy & Space

2006-08-26 15:56:51 · 10 answers · asked by gokul r 1 in Chemistry

I really miss Pluto as of two days ago. Anyone else as well?

2006-08-26 15:56:05 · 14 answers · asked by CMoney 1 in Astronomy & Space

how many new properties have we found out these years

2006-08-26 15:55:52 · 3 answers · asked by thrumancn 1 in Chemistry

2006-08-26 15:54:01 · 7 answers · asked by Anonymous in Mathematics

2006-08-26 15:51:43 · 15 answers · asked by BRANDI 1 in Other - Science

Is there a formula? Can anyone tell me if there's any way to do it on my calculator (TI-83 Plus)?
btw it is the kind of graph where x doesn't ever reach 0 and y doesn't reach 0 too. forgot what that is called.

2006-08-26 15:51:21 · 5 answers · asked by -WANTED- 3 in Mathematics

2006-08-26 15:50:42 · 13 answers · asked by Quantum Eagle 1 in Physics

2006-08-26 15:49:30 · 3 answers · asked by GideonSmith08 2 in Zoology

2006-08-26 15:48:21 · 18 answers · asked by sal_menella 2 in Physics

Does every child start off a girl or boy. vagina or penis what happened i need to know?

2006-08-26 15:46:50 · 12 answers · asked by Lady E 2 in Biology

1) Find the product: (3m + 4)(m - 2)

A- 3m^2 + 10m - 8
B- 3m^2 + 2m - 8
C- 3m^2 - 8
D- 3m^2 - 2m - 8

2) Factor: 3x^2 +x - 24

A- (3x - 8)(x + 3)
B- (3x - 3)(x + 8)
C- (3x - 8)(x - 3)
D- (3x - 6)(x + 4)

3) Solve: 7 times a number, added to the square of a number, equals -12. What is the number?

A- 3 or 4
B- -4
C- -3 or -4
D- -3

Thank you............ 10 points for best answer!

2006-08-26 15:45:06 · 13 answers · asked by Anonymous in Mathematics

2006-08-26 15:43:03 · 7 answers · asked by Anonymous in Astronomy & Space

Supplier is Melles Griot. Operating voltage is 2000V, and beam output is 5mW. Also, what is consequence of connecting with reversed DC polarity?

2006-08-26 15:41:57 · 10 answers · asked by Jason M 1 in Physics

it has something to do with pavement design

2006-08-26 15:38:20 · 2 answers · asked by mrsgrubster 1 in Engineering

freshmen year i took intergerated math 1 and
sophmore year i took geometry and
junior year i'm taking alegbra 2.

and in order to pass highschool you need to take alegrba 1.

and the school is deciding that the intergrated class i took isn't going to count as Alegrba 1 so they want me to take either.

algbra 1 or 2, and then it will count.

currently i'm enrolled for alegbra 2 but i forgot everything about some stuff in alegbra like radicals and how to simply and such.

so i don't know if i should go and retake alegbra 1 JUNIOR year or just continue with the class i'm taking.. which is alegbra 2 and stuggle with it.

2006-08-26 15:35:50 · 11 answers · asked by Anonymous in Mathematics

2006-08-26 15:34:35 · 6 answers · asked by eRalph 1 in Mathematics

2006-08-26 15:32:32 · 12 answers · asked by carmanpops 1 in Biology

Approx. 30 yrs. ago, while traveling cross country (USA) I'd picked up 2 days work for this farmer in a small central TX. town. I can't for the life of me remember his name, but the town was San Gabriel. What he did, I do remember- He had showed me how to setup and use a self-operating pump, to pump water from this creek, to irrigate his fields and keep his pond filled. The thing is- this pumps power came from the running of the water only. Has anyone info on this type of pump? I have a small version duplicated.

2006-08-26 15:31:49 · 5 answers · asked by Anonymous in Engineering

This is strange, does it happen to you?

2006-08-26 15:31:16 · 10 answers · asked by Anonymous in Chemistry

2006-08-26 15:30:36 · 21 answers · asked by summerlands_shadow 3 in Earth Sciences & Geology

It's not that amazing, but I didn't expect it to happen. Whoever guesses correctly first gets Best Answer.

2006-08-26 15:29:27 · 7 answers · asked by hippomaiden 3 in Chemistry

2006-08-26 15:28:52 · 16 answers · asked by Didgeridude 4 in Weather

Not counting that biology can lead to medical school, because I don't think I want to go in that direction. I've always been more into natural sciences.

2006-08-26 15:28:28 · 4 answers · asked by cassicad75 3 in Other - Science