Science & Mathematics - 31 October 2007

2007-10-31 02:52:22 · 6 answers · asked by Anonymous in Earth Sciences & Geology

At a certain instance the captain of the ship observed that the angle of elevation of the top of the lighthouse is 50 meters above the water level is 60 degrees. After travelling directly away from the lighthouse for 5minutes, the same captain noticed that the angle of elevation is now 30 degrees. If the telescope is 6 meters above the waterline, find the velocity of the ship

2007-10-31 02:52:12 · 3 answers · asked by delixir_21 1 in Mathematics

2007-10-31 02:49:22 · 23 answers · asked by bonevacia 1 in Biology

2007-10-31 02:46:35 · 13 answers · asked by Tracy 1 in Astronomy & Space

I need to actually invent this for my science class... But I'm having problems on how!!

2007-10-31 02:45:37 · 3 answers · asked by Anonymous in Other - Science

if the sides of a square are increased by 2 meters, the area becomes 25 square meters. Find the lgth. of a side of the original square.

2007-10-31 02:40:26 · 9 answers · asked by ann m 1 in Mathematics

2007-10-31 02:39:33 · 5 answers · asked by dam38606 1 in Geography

When it is on the point of midnight ie 00.00 hrs, are you still in the day before or is it the beginning of the new day?

2007-10-31 02:38:49 · 12 answers · asked by JANE R 2 in Other - Science

2007-10-31 02:35:59 · 7 answers · asked by brownie 2 in Physics

I live in Europe, and I know very few about it. Can you help me? Thanks a lot!

2007-10-31 02:33:47 · 11 answers · asked by bass@vol@wer 3 in Geography

2007-10-31 02:33:27 · 6 answers · asked by jacob s 1 in Earth Sciences & Geology

They say space is cold. I've heard say that it is actually 0 degrees kelvin in the absence of a star. So we have the sun radiating heat, but they say space is cold. So two questions, if it is cold in space, even around the earth, then what causes the heat of the sun to materialise once inside the atmosphere? And if space is cold, how close could we get to the sun without feeling it's effect?

2007-10-31 02:33:12 · 9 answers · asked by Anonymous in Astronomy & Space

line shown is (0,1), (-1,-4)

a) -1/5
b) 1/5
c) -5
d) 5

2007-10-31 02:31:30 · 4 answers · asked by Anonymous in Mathematics

and dont say pot, its for school

2007-10-31 02:30:17 · 14 answers · asked by Anonymous in Medicine

2007-10-31 02:29:09 · 29 answers · asked by red 1 in Zoology

slope = - 4 and y-intercept = - 3

2)
slope= 1/2 and y intercept=0

2007-10-31 02:26:51 · 6 answers · asked by Anonymous in Mathematics

2007-10-31 02:24:26 · 3 answers · asked by Doug J 1 in Engineering

its a bit like our brief life,a brief period of light and then back into eternal darkness,to be seen no more.out,out brief candle,life is a walking shadow!!

2007-10-31 02:23:59 · 2 answers · asked by Anonymous in Physics

In a hand of 5 cards how many ways are there to get exactly 3 kings or 4 kings?

2007-10-31 02:23:06 · 4 answers · asked by Anonymous in Mathematics

Hello my major is mechanical engineering so my knowledge in chemistry is somehow limited, but i was wondering everyday people Why are we here on earth???? to what cause??. So i was thinking and i had my theorie that there is no cause for us but we are rather a consequence of the fact that atoms need to bend altogether and that is how molecules were created (because if all atoms were nobles there wouldn't be any molecules, universe...) and they in turn created acide amino than created humans blablabla. So what do you think is my theorie credible enough or should i shut up and stick to mecanichal engines...

2007-10-31 02:21:39 · 2 answers · asked by Ifleyfel 2 in Chemistry

One of the tasks of an engineering technician is to collect data. Which of the following is good advice
concerning data collection?

A. Always try to record data with a computerized monitoring system.
B. Record as much data as possible, even if it’s not needed for your project.
C. Know what the data is going to be used for before you begin collecting it.
D. Computerized and visual data collection are interchangeable for data collection projects.

2007-10-31 02:21:24 · 6 answers · asked by ase 1 in Engineering

I seen a flash of green light in the sky.

2007-10-31 02:21:02 · 6 answers · asked by littledwarf2004 2 in Earth Sciences & Geology

Why is the country called Philippines, with a PH. But the language they speak there is spelled Filipino, with a F?

2007-10-31 02:17:53 · 1 answers · asked by nathan122591 2 in Geography

A. keep track of data collection in chronological order.
B. plan a project with task assignments and expected dates of completion.
C. understand how a technology has changed and grown over time.
D. measure the wear of a particular part over its lifetime.

2007-10-31 02:17:39 · 4 answers · asked by ase 1 in Engineering

2007-10-31 02:16:22 · 13 answers · asked by Anonymous in Mathematics

2007-10-31 02:13:37 · 8 answers · asked by Anonymous in Mathematics

2007-10-31 02:09:21 · 6 answers · asked by iveaquestion 3 in Astronomy & Space

2007-10-31 02:03:41 · 3 answers · asked by funny t 1 in Zoology

2007-10-31 02:00:08 · 2 answers · asked by qq5121971 2 in Other - Science

help in calculus plzzzz...

2007-10-31 01:52:13 · 3 answers · asked by haidielhakim 1 in Mathematics