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Science & Mathematics - 23 August 2007

[Selected]: All categories Science & Mathematics

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2007-08-23 01:56:47 · 29 answers · asked by arvind s 1 in Astronomy & Space

2007-08-23 01:54:54 · 2 answers · asked by Shakaaaaaaaaaaal 1 in Engineering

I dont understand how they are different, can you please explain?

2007-08-23 01:54:11 · 2 answers · asked by sshhmmee2000 6 in Other - Science

Some well documented pictures of the 100 plus asteroid impact craters on earth show the empty craters. But what happened to the huge objects that created these?

2007-08-23 01:41:15 · 6 answers · asked by superprohero 2 in Astronomy & Space

I know it's wrong but can someone explain why?

2007-08-23 01:40:33 · 2 answers · asked by Anonymous in Physics

Is it because of the babies surface area to volume ratio?

2007-08-23 01:36:11 · 7 answers · asked by Bob R 2 in Medicine

Which one is of higher quality and standard:

Eurostar-2000+
and
HS-601HP

2007-08-23 01:34:02 · 1 answers · asked by Omar 1 in Astronomy & Space

Q1. Peter walks from her house for 2 km in a direction N15`E and then turns right through 90 degrees to the original directions.She than walks for a further distance of 1 km to arrive at Stephen house.
a) Find the magnitude od the resultant displacement
b)find the angle between this vector and Peter`s original directions
c) What is the direction of stephen house from Peters house?
Q2) A Emirates aeroplane takes off from Tullamarine airport bound for Cairns,and flies for 20 km at an angle of elevation of 30*, and horizontally at 200 km/h . Find the displacemtn from thr take off point after six minutes of horizontaly flying.
Q3)During the Gipspsland floods Ron rows his boat with a velocity od 6km/h directly towards the opposite bank of a river which is flowing at 2km/h A)Find the velocityof the boat relative to the bank of the river. and if the river is 100m wide how far down down the river below the will Rons boat reach the oppositebank

2007-08-23 01:29:35 · 2 answers · asked by Anonymous in Mathematics

a 200 v shunt motor develops 23 Hp, when taking 20.2kW. the field and armature resistance are 50 ohms and 0.06 ohms respectively. What is the efficiency when the output is 10 Hp?

with solution please..hhe..thank you =]

2007-08-23 01:29:22 · 2 answers · asked by aeiou 1 in Engineering

2007-08-23 01:27:18 · 1 answers · asked by n4dia87 1 in Physics

should i be doing stuff to prepare or is it really unnecessary?

2007-08-23 01:26:44 · 1 answers · asked by Alexandra 1 in Weather

I would like to be a Scientist.
Now, Scientist have decide to move to another planet! We, people are moving to MARS! Do not worry about food or oxygen, they have an idea.

2007-08-23 00:31:22 · 12 answers · asked by Anonymous in Astronomy & Space

can someone tell me how do i remove the brackets and simplify: (17x + 2)(3x − 5)??

can you show this to me in a step by step guide please.

2007-08-23 00:19:07 · 22 answers · asked by . 1 in Mathematics

>>O
>>/ \/\\
>>| |
>>\ /\
>>O OH

2007-08-23 00:02:41 · 2 answers · asked by Ira d 2 in Chemistry

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