Science & Mathematics - 14 January 2007

This based on how many points i have now and the amount of questions answered by how long i have been answering!
the date & time of your answer is crucial.
the best explanation & answer wins.

2007-01-14 09:43:44 · 5 answers · asked by TETRO 2 in Biology

Wouldn't there have to be Loch Ness Monsters? At least a male and female consistently being born and bearing offspring to keep the species (supposedly a plesiosaur?) surviving. Wouldn't several "Nessies" be easier to find? Aaaaaand, how did they survive the massive extinction which doomed the dinosaurs? What say thee?

2007-01-14 09:43:06 · 17 answers · asked by Anonymous in Zoology

For science fair, i have a Ozarka Aquapod bottle and it says "11 fl oz". Is that a pint or is it smaller than that?

2007-01-14 09:42:30 · 4 answers · asked by raven12490 2 in Chemistry

1) two, two
2) two, three
3) three, two
4) three three

2007-01-14 09:41:52 · 5 answers · asked by WiLLiAm D 2 in Mathematics

the problem says... compare the input work to the output work. Based on your comparison, decide whether the principle of conservation of energy is violated. Explain your answer.

note:work input=4,500 J
work output=5,400 J

i think yes this principle is violated because more work was put out than into. plz help me with this?

2007-01-14 09:41:28 · 3 answers · asked by dreamz 4 in Physics

the ratio of the sides of a tright GhI to the corresponding sides triangle jkl is 5 to 4. if the perimeter of triangle jkl is 60 cm then what is teh perimeter of the triangtle ghi.

side gh correspond to side jk
side hi correspons to side kl
side gi corresponds to side jl

2007-01-14 09:39:49 · 5 answers · asked by Anonymous in Mathematics

2007-01-14 09:39:11 · 8 answers · asked by LastHorcrux 3 in Astronomy & Space

1) cos(x - π/3) + sin(x - 5π/6)
looking at that confuses me big time.


and for 12tanx/1-tan^2x
how do i rewrite that one using the double angle formula?

2007-01-14 09:37:12 · 3 answers · asked by T 2 in Mathematics

1) 3.5 cm2
b) 7 cm2
c) 10.5 cm2
d) 12.25 cm2

2007-01-14 09:36:03 · 17 answers · asked by WiLLiAm D 2 in Mathematics

28 Aretha has 0.85 in nickels and dimes.She has 2 more nickels than dimes.How many nickels and dimes does she have?

2007-01-14 09:35:25 · 4 answers · asked by Wii 1 in Mathematics

I'm in a world geography class at college this semester, and part of the work is memorizing maps: the countries, their capitals, rivers, oceans, etc... Can anyone give me some advice?? Or at least a link to a webpage with advice?

2007-01-14 09:35:02 · 7 answers · asked by bpep111 2 in Geography

2007-01-14 09:34:28 · 8 answers · asked by Miranda 2 in Chemistry

Also, what is the difference between meiosis and mitosis?

2007-01-14 09:33:28 · 9 answers · asked by Shika 1 in Biology

1) the circumference
2) the diameter
3) the radius
4) it depends on the size of the circle

2007-01-14 09:32:59 · 6 answers · asked by WiLLiAm D 2 in Physics

2007-01-14 09:32:55 · 8 answers · asked by D310N 3 in Mathematics

2007-01-14 09:31:22 · 6 answers · asked by SusieeQ 3 in Biology

Example:
H 2 O 2-----------> H 2 O + O2

2007-01-14 09:30:57 · 4 answers · asked by Sara P 1 in Chemistry

2007-01-14 09:30:12 · 4 answers · asked by Buddie 1 in Zoology

Two liquid hydrocarbons A and B each C6H6 were used in an experiment. A decolourises bromine water rapidly whereas B reacted very slowly
- draw possible structures for A and B
- explain why B reacted very slowly.

2007-01-14 09:29:54 · 4 answers · asked by Stephanieee! 1 in Chemistry

2007-01-14 09:29:05 · 4 answers · asked by RAY L 1 in Geography

2007-01-14 09:28:17 · 4 answers · asked by bearblue42000 1 in Engineering

stuck on this question. thanks

2007-01-14 09:28:15 · 5 answers · asked by Anonymous in Mathematics

Plz help on these 2 physics problems?
1. The top pulley hanging from the support produces only a change in direction of the effort force and not any mechanical advantage. Explain.

2. Determine the relationship between the number of strands supporting a block and tackle and its mechanical advantage.

note that...
mechanical advantage=Resistance(load)N/Effort(force)...
which is usually>1

2007-01-14 09:26:39 · 2 answers · asked by dreamz 4 in Physics

Can u slove this word problem equation

The sum of two numbers is 39. Twice the first number plus 3 times the second number is 101.

a) Find the numbers using guess and check
b) Find the numbers by writing and solving an equation.

c) Which method do you pefer?Why?

2007-01-14 09:26:04 · 8 answers · asked by Wii 1 in Mathematics

2007-01-14 09:23:52 · 15 answers · asked by Danielle B 1 in Mathematics

2007-01-14 09:23:40 · 4 answers · asked by babyghurl_4u 1 in Mathematics

I need to find the highs and lows of January 2007 for Oklahoma City, OK. This is for a science project, and I need to know what the weather was like for January. Thank you.

2007-01-14 09:22:03 · 3 answers · asked by OUFreak 1 in Weather

One type of antifreeze is 40% glycol, another type is 60% glycol. How much of each should be used to make 100 gallons of antifreeze that is 48% glycol? The answer I came up with is : 60 Gallons of the 40% and 40 Gallons of the 60% Is that correct?

2007-01-14 09:21:07 · 6 answers · asked by kkneisler 5 in Mathematics

2007-01-14 09:20:56 · 6 answers · asked by Anonymous in Chemistry

I am going to be studying BioMedical Engineering at college in the fall, and was wondering if there is any foreseeable future for this field in our world. What kind of future does the field of prosthetics have?

2007-01-14 09:19:51 · 4 answers · asked by Amanda 1 in Engineering