Science & Mathematics - 14 February 2007

2007-02-14 05:18:21 · 5 answers · asked by kay 1 in Mathematics

2007-02-14 05:18:16 · 5 answers · asked by pinhed_1976 6 in Mathematics

Dave is making paper chain decorations for his sisters Bday party.
It takes him 90 seconds to make 4 links. If Dave continues at the same speed, how long will it take him to make 72 links?

2007-02-14 05:16:36 · 9 answers · asked by Kathy H 2 in Mathematics

2007-02-14 05:15:38 · 5 answers · asked by kay 1 in Mathematics

Can you plz explain me and give examples cuz im confused about them. thnx!

2007-02-14 05:14:39 · 2 answers · asked by Anonymous in Biology

Thank you

2007-02-14 05:14:38 · 11 answers · asked by saeedsafasaeed 1 in Mathematics

80% of bees are dead, whats your best guess as to why?

I am seeing these reports of 80% of the domestic bee population, which is used to pollinate agricultural crops, has suddenly died.

Bees are very sensitive to magnetic fields, could it perhaps be that something is happening on a magnetic level that is disorientating them so that they loose sense of direction?

What do you think the cause is?

One other thing, we are expecting a collapse of the seafood supply within 40 years.

2007-02-14 05:14:25 · 8 answers · asked by dolphinparty13 2 in Earth Sciences & Geology

also is quartz a major part of a rock?


plz help me

2007-02-14 05:14:04 · 1 answers · asked by Laura 2 in Earth Sciences & Geology

Has anyone just tried jumping up and down as high as possible for a period of time?

It seems like that would be the best way cuz I know ankle weights are harmful and lifting weights doesn't give you the right speed.

2007-02-14 05:13:58 · 3 answers · asked by Anonymous in Other - Science

thank you

2007-02-14 05:13:21 · 3 answers · asked by Anonymous in Zoology

2007-02-14 05:10:51 · 7 answers · asked by previousjob 1 in Botany

2007-02-14 05:07:39 · 4 answers · asked by Tamekia Anderson 4 in Medicine

2007-02-14 05:07:06 · 19 answers · asked by jpmoriarty 2 in Zoology

as in.... 1 and a half, or 3/4

2007-02-14 05:04:32 · 8 answers · asked by rainbow 1 in Mathematics

2007-02-14 05:04:23 · 11 answers · asked by ellen s 1 in Mathematics

A sample of 100 indiv is taken from a breeding population (population x) of M&Ms that is in Hardy-Weinberg equilibrium for candy color. A=blue, A' = yellow. The heterozygote (AA') phenotype is green.

1) In the sample of 100 indiv, 30 were blue, 50 were green, and 20 were yellow. In this sample, what is the frequency of the A' allele?
2) In the original population x, p(A) =.6. If the same has the same allele frequency, how many indiv of the 100 candies in the sample would be expected to be green?

2007-02-14 05:04:16 · 2 answers · asked by Anonymous in Biology

If you were to jump directly downwards from a bridge onto a lorry that was travelling at 70 mph along a road and landed in the lorry would you go instantly from 0 to 70mph with no accleration?

2007-02-14 05:03:27 · 2 answers · asked by matt_primeminister 1 in Geography

A) 3
B) 6
C) 1
D) 5

2007-02-14 05:01:51 · 2 answers · asked by M 2 in Chemistry

A) 1000
B) 648
C) 600
D) 840

2007-02-14 05:00:08 · 4 answers · asked by M 2 in Mathematics

please list source

2007-02-14 04:57:28 · 7 answers · asked by Anonymous in Earth Sciences & Geology

2007-02-14 04:56:31 · 19 answers · asked by Anonymous in Zoology

2007-02-14 04:55:47 · 11 answers · asked by spongytoast 2 in Astronomy & Space

project. can anyone tell me what exactly this position would involve

2007-02-14 04:54:26 · 4 answers · asked by Anonymous in Engineering

what are some special features of graphite?
where is graphite located in the world?
what is graphites chemical formula if it has one?
how is graphite formed?
is graphite a major part of any rock or rocks?

please state your source.

2007-02-14 04:54:13 · 2 answers · asked by Anonymous in Earth Sciences & Geology

2007-02-14 04:52:08 · 9 answers · asked by spongytoast 2 in Astronomy & Space

ok here it is

lisa traveled the last 240 miles of her trip at 48 mph. the entire trip covered 500 miles and took 10 hours. what was lisas rate of speed for the first 260 miles

2007-02-14 04:51:49 · 15 answers · asked by Kathy H 2 in Mathematics

What is the pH of a solution prepared by dissolving 2.00 g of ammonium nitrate in 0.500 L of water?

Balance the reaction and give pH.

2007-02-14 04:51:12 · 3 answers · asked by vntraderus88 1 in Chemistry

Can anyone tell me what is possibility for foreigner ( european) to get a job in India Kolkata as structural engineer or designer and what could be average salary? I have about 5 years of experience with steel structures.

2007-02-14 04:47:37 · 2 answers · asked by Julia Z 2 in Engineering

What is the lower temperature range at which a copper furnace is effective? Why is a slightly or considerably higher temperature desirable? For a copper furnace constructed of glass, what controls the useful upper temperature?

2007-02-14 04:46:33 · 2 answers · asked by Milla J 1 in Chemistry

2007-02-14 04:43:43 · 7 answers · asked by juneaulady 4 in Biology