Science & Mathematics - 1 February 2007

anita volunteers at the school library for 3 hours each day.how many hoirs does she volunteer in a 180-day school year???
can you tell me how you you solved this problem.And number sentance.And answer???? PLEASE

2007-02-01 09:14:21 · 6 answers · asked by iloveskulls8 2 in Mathematics

on this planet in the real world, I mean, not in a laboratory setting or on the moon Callisto.

2007-02-01 09:13:03 · 7 answers · asked by parthenophilast 2 in Weather

Like you do to measure the dia of say exh. cat. convertor inlet/outlet?

2007-02-01 09:12:55 · 5 answers · asked by Don B 5 in Engineering

ive had a really bad cough and took a whole bottle in 20 mins :/ wanderd if any doctors or ppl that no about it could tell us if its dangerous to take the whole bottle !

2007-02-01 09:12:26 · 2 answers · asked by emma c 1 in Medicine

I need to know how it gets a copper wire/magnet to spin to produce energy
what companies or government is researching it
what problems with energy harnessed from fossil fuels
PLEASE NO WIKIPEDIA!!!!

2007-02-01 09:12:06 · 4 answers · asked by Anonymous in Earth Sciences & Geology

could u give me the answer

2007-02-01 09:10:05 · 4 answers · asked by Ramon P 2 in Mathematics

2007-02-01 09:09:47 · 7 answers · asked by viva la me 1 in Earth Sciences & Geology

Assuming that the bible is reasonably historically accurate It would put the great flood at around 10,000 years ago. Surely this is the same time as the end of the last Ice age. Given that people living in Judea were well south of the ice, they couldn't have known of it's existance so when it melted there was a flood. My problem is that many people seem to say the the great flood caused an Ice age albeit a very short one, surely this is nonsense as the ice age lasted for 10s of thousands of years

2007-02-01 09:09:30 · 3 answers · asked by John A 1 in Earth Sciences & Geology

A solution is made up by weighing out 20g of sodium ethanoate, NaO2CCH3 dissolving in water and making up to a volume of 250mL.

(a) How many moles of sodium ethanoate were used?

2007-02-01 09:07:11 · 2 answers · asked by simplicety 1 in Chemistry

2007-02-01 09:06:33 · 11 answers · asked by DanelleJordan 1 in Mathematics

2007-02-01 09:05:22 · 14 answers · asked by *winterbaby* 2 in Mathematics

Can you please tell me, WHAT DO SHOREBIRDS EAT??? What do North America shorebirds eat. If you have a source please write it down.

2007-02-01 09:03:32 · 3 answers · asked by Chico Caribeño 2 in Zoology

I need help with that question for a project!

2007-02-01 09:03:04 · 12 answers · asked by krazy_lollipop12 1 in Astronomy & Space

I know it's like, basic algebra knowledge, but somehow I've forgotten how to find the slope of the line.

-4x+7y-1=0

Thanks!

2007-02-01 09:02:54 · 5 answers · asked by Aliza, Queen of the Night 3 in Mathematics

A traveling salesman (selling shoes) stops at a farm in the Midwest. Before he could knock on the door, he noticed an old truck on fire. He rushed over and pulled a young lady out of the flaming truck. Farmer Crane came out and gratefully thanked the traveling salesman for saving his daughter’s life. Mr. Crane insisted on giving the man an award for his heroism.

So, the salesman said, “If you insist, I do not want much. Get your checkerboard and place one grain of wheat on the first square. Then place two grains of wheat on the next square. Then place four grains on the third square. Continue this until all 64 squares are covered with grains of wheat.” As he had just harvested his wheat, Mr. Crane did not consider this much of an award, but he soon realized he made a miscalculation on the amount of wheat involved.

a) How much wheat would Mr. Crane have to put on the 24th square?
Answer:
Show work in this space.
b) How much total grain would the traveling salesman receive if the checkerboard only had 24 squares?
Answer:
Show work in this space
c) Calculate the amount of wheat necessary to fill the whole checkerboard (64 squares). How much wheat would the farmer need to give the salesman? Please provide the answer in either scientific notation, or calculate and show all 20 digits.
Answer:

2007-02-01 09:02:50 · 3 answers · asked by ajanene71 2 in Mathematics

i need help. my book doesn't have this information. i really appreciate it.

1. 2 kinds of fibers extend from the somas of many neurons: one long ___ and many short bushy ___.

2. the __ of a neuron is the large spherical structure that contains its genetic material.

3. __ potentials are conducted nondecrementally.

4. the process of neurotransmitter release is called __.

5. neurotransmitter molecules are often stored in synaptic __ near the presynaptic membrane.

6. together the dendrites and cell body are referred to as the __ area of a neuron.

7. action potentials are generated as the axon __.

8. each synapse is sandwiched between __ membrane and a __ membrane.

9. neurotransmitter molecules, once released, diffuse across the __.

10. prominent in the cytoplasm of the cell body is a system of plate-shaped membranous sacs, much of which has a rough appearance. this structure is called ___ ___.

11. neurotransmitter molecules bind in a key-in-lock fashion to postsynaptic ___.

2007-02-01 09:02:43 · 2 answers · asked by amy2188us 1 in Biology

2007-02-01 09:01:54 · 8 answers · asked by jessika 4 in Physics

My grandmother passed away 12 yrs ago and I think she predicted her own death. Here's the story: My grandmother's health was detoriating and she was bed ridden for about 2 years. I was sleeping over that night and she kept a mattress in her closet which i went to get. When I entered her room, i felt a strange feeling, like something wasn't right. Then my grandmother asked me "why are you being so rude, why don't you give these people a drink." "The people" she was referring to were family members of ours that were already dead. That night she also said she was going to leave with them, basically like, she was going to die that night. I didnt believe her and neither did everybody else. We just thought she was going senile, but the next morning we found her dead in her bed. Do you think its possible that she knew she was going to cross over to the other side?

2007-02-01 09:01:46 · 16 answers · asked by stormy 4 in Paranormal Phenomena

the iodine was prepared by ourselves.

2007-02-01 09:01:10 · 3 answers · asked by slick_chick 2 in Chemistry

I need to know which metals rust please tell me.

2007-02-01 08:59:57 · 14 answers · asked by mlmj1994 2 in Chemistry

true or false

1. individuals with genotype HhGg can only produce gametes with genotypes HG and hg
2. the recessive allele achieves expressions when two recessive alleles are present
3.the genotype of a person with O blood type is ii

2007-02-01 08:59:44 · 3 answers · asked by Felicia F 1 in Biology

2007-02-01 08:58:55 · 15 answers · asked by fritos21009 1 in Mathematics

2007-02-01 08:56:58 · 31 answers · asked by Anonymous in Astronomy & Space

2007-02-01 08:56:00 · 2 answers · asked by cat_eyes<\>.</> 1 in Biology

Please help, doing a diabetes assignment.

2007-02-01 08:55:34 · 7 answers · asked by bug 3 in Chemistry

2007-02-01 08:54:34 · 5 answers · asked by Limeboy 1 in Chemistry

I know Oxygen is diatomic, but I'm still confused. If it has twice as many atoms, what differene does that make- you still have the same number of atoms, 6.02x10^23. What difference does it make if they are paired up? Unless the atomic mass of ONE Oxygen atom is 16.00, is that it? Please explain it to me. Thanks.

2007-02-01 08:53:53 · 4 answers · asked by fslcaptain737 4 in Chemistry

An old car has to travel a 2-mile route uphill and down. Because of the condition of the car, it can only climb the first mile no faster than an average of 15 mph. How fast does the car have to travel on the second mile in order to obtain an average speed of 30 mph?

2007-02-01 08:52:05 · 6 answers · asked by Anonymous in Mathematics

If f(4) = 0 and f(6) = 6, which of the following could represent f(x) ?
The answer is 3x-12.

2007-02-01 08:51:20 · 5 answers · asked by Ndpndnt 5 in Mathematics

2007-02-01 08:49:00 · 17 answers · asked by Yogesh R 1 in Biology