Science & Mathematics - 17 January 2007

2007-01-17 22:53:40 · 5 answers · asked by Anonymous in Other - Science

A boat travels up stream in a river with a constant but unknown speed V with respect to water. At the start of this trip upstream, a bottle is dropped over the side. After 7.5 minutes the boat turns around and heads downstream. It catches up the bottle when the bottle has driffted 1 km down stream from the point at which it was dropped into water. Then the velocity of water current is?

2007-01-17 22:52:54 · 1 answers · asked by Ekant 2 in Physics

Platelets 336
MCHC 33.4
MCV 89-0
PCV 47-0
RBC 4.60
Monocytes 5.1
Lymphocytes 29.0
Neutrophilis 65.9

I asked the doctor, but he said it was normal and nothing to worry about. I felt fobbed off. I just want to know what the initials stand for. thanks.

2007-01-17 22:52:12 · 3 answers · asked by Balaboo 5 in Medicine

One of my projects is to make a disease (theoretically) and one option I considered to be the place the virus originated was an apple from the New York part of the Appalachian Mountains. Is it possible for a virus to live and breed in apples?

2007-01-17 22:50:49 · 6 answers · asked by Anonymous in Biology

Where does life originate from?

2007-01-17 22:49:39 · 12 answers · asked by sfumato1002 3 in Biology

1. Explain the following observation:

When a small amount of ethanol at room temperature is placed on the skin, a cold sensation is felt.

2. Oxygen forms the ion O2- and sodium forms the ion Na+.

-in what way are these two ions different?
-in what way are these two ions the same?


Thanks a lot.

2007-01-17 22:49:34 · 1 answers · asked by sweetSPEED 2 in Chemistry

2007-01-17 22:47:57 · 6 answers · asked by alia 1 in Weather

Chosse the element,Nitrogen, and describe how we could carry out an experiment to show that it is essential for the normal development of a green plant...
IN what form and by what processes are mineral elements taken up by the roots of a plant?

2007-01-17 22:46:57 · 4 answers · asked by iqnabeel 1 in Biology

do mosquito have immune system?

2007-01-17 22:46:36 · 6 answers · asked by MAGDALENE 1 in Zoology

2007-01-17 22:46:30 · 3 answers · asked by Ritesh 1 in Astronomy & Space

2007-01-17 22:45:40 · 5 answers · asked by Anonymous in Astronomy & Space

C4 H10 + 02 -> CO2 + H2

C6 H12 06 + 02 -> CO2 + H2O

C3 H5 (NO3)3 -> CO2 + H2O + N2 + O2

NF3 + H20 -> HF + NO + NO2

CH3 OH + H2 -> CH4 +H2O

2007-01-17 22:42:31 · 1 answers · asked by Anonymous in Chemistry

2007-01-17 22:42:30 · 1 answers · asked by colin 2 in Botany

2007-01-17 22:41:52 · 3 answers · asked by xyz75lv 1 in Geography

complete working for 10 marks!!!!!

2007-01-17 22:41:22 · 6 answers · asked by Tuhak 1 in Mathematics

Water is the less denser than Ice .Still it is swinging.

2007-01-17 22:39:25 · 6 answers · asked by Naddi S 1 in Physics

Please show me complete working . Good luck in solving.

2007-01-17 22:37:29 · 6 answers · asked by Tuhak 1 in Mathematics

2007-01-17 22:36:42 · 2 answers · asked by Ramil a 1 in Engineering

Skeletal muscle: Produces movement, maintains posture, stabilises joints and generates heat

Smooth muscle: Found in the walls of hollow organs

Cardiac muscle: Exists only in your heart
It works automatically and constantly without ever pausing to rest.

every other types of muscles get tired except cardiac muscle, why?

2007-01-17 22:33:18 · 7 answers · asked by Dhaval 2 in Biology

2007-01-17 22:31:17 · 13 answers · asked by Spikeymikey 1 in Physics

2007-01-17 22:30:22 · 2 answers · asked by Ramil a 1 in Engineering

2007-01-17 22:29:10 · 25 answers · asked by sandy_bite 1 in Astronomy & Space

3^x = 81

2007-01-17 22:28:33 · 10 answers · asked by Matthew K 2 in Mathematics

i am bored of seaching in internet they are not providing correct links,at least please give me some links

2007-01-17 22:28:17 · 7 answers · asked by Sathis 1 in Engineering

So, there's unusually bad weather in California and Arnie has declared a "State of Emergency". Will that stop the weather from being naughty? Will it make the climate warm up? Will it help the inhabitants of the region remember to dress up warm and look out for ice and the cold generally? Will it mean that people rush aid to the region - like woolly hats and scarves?

2007-01-17 22:26:44 · 6 answers · asked by big pup in a small bath 4 in Weather

One min it was calm with a few fluffy white clouds in the sky,the next it is thundering and lightning,windy and hail-stoning massive chuncks of ice like I have never seen,what is going on!
I am near the lake district in England.
I really do think we need to act more on global warming issues.

2007-01-17 22:24:15 · 13 answers · asked by mumstheword 2 in Weather

I am assuming this will involve trigonometry somehow.

2007-01-17 22:24:11 · 8 answers · asked by Anonymous in Mathematics

How do I solve the following equation and PLEASE SHOW WORK!


8d-4d-6d-8=2d

2007-01-17 22:23:57 · 6 answers · asked by Anonymous in Mathematics

I live in Britain, and the winds are pretty much 50-80mph. It is something that is bothering me. Should I go today, or wait til the weather has calmed down?

2007-01-17 22:21:02 · 16 answers · asked by gr_bateman 4 in Weather

It must revolve around me I was created in God's image.

2007-01-17 22:16:02 · 10 answers · asked by Anonymous in Astronomy & Space