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Science & Mathematics - 8 January 2007

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How is this problem solved?

2007-01-08 13:01:39 · 4 answers · asked by Anonymous in Mathematics

Aircraft Speed: An Airbus A320 aircraft is crusing at a n altitude of 10 000m. The aircraft is flying in a straight line away from Chandra, who is standing on the ground. If she sees the angle of elevation of the aircraft change from 70 deg to 33 deg in 1 minute, what is the cruising speed, to the neaeest kilometer per hour? Use language to explain your variables and steps.

Please help.

heavenin_dhell@rogers.com
heavenin_dhell@hotmail.com

The book is callled
Math Power10
Ontario edition

Grade 10 math text book

2007-01-08 13:01:16 · 2 answers · asked by Sunny 2 in Mathematics

2007-01-08 13:00:25 · 2 answers · asked by sharon 1 in Chemistry

the substances formed as a result of a chemical reactionare called reactants.

2007-01-08 13:00:09 · 15 answers · asked by Anonymous in Chemistry

Say for example: 2 spaceships leave earth 1 from the northpole & the other from the southpole. Surely if they traveled to say jupitar & back Without rotating their ship. Then they met up near the moon they would still be the upside down to each other?

2007-01-08 12:58:22 · 5 answers · asked by junglist_masiv2000 2 in Astronomy & Space

Find the formula for " all angles x such that x is coterminal with 15 degrees"


If you have an answer, did or do you have to use the unti circle for this?
please explain it so i can better understand.

2007-01-08 12:56:43 · 3 answers · asked by Anonymous in Mathematics

f(x)= 6x^5 - 38x^4 + 12x^3 - 15x^2 + 95x - 30; x-6

2007-01-08 12:56:17 · 2 answers · asked by jdrgearup 1 in Mathematics

Scores on a test have a mean of 64 and Q3 is 82. The scores have a distribution that is approx norm. Find the standard deviation.

2007-01-08 12:54:46 · 1 answers · asked by ? 2 in Mathematics

In a petrochemical plant they are using some equipments like boiler, economizer, deaerator and exchagers? Could you please tell me what are these items and how they work? What are the functions of these equipments in the petrochemical company?

2007-01-08 12:53:42 · 2 answers · asked by jayancjaa 1 in Engineering

2007-01-08 12:53:20 · 9 answers · asked by Anonymous in Physics

0

Which of the salts (sodium chloride, potassium nitrate and calcium hydroxide) could dissolve much more with increasing temperatures, and why?

2007-01-08 12:52:09 · 1 answers · asked by untilyoucamealong04 3 in Chemistry

Q: Find the able between the forces given the magnitude of their resultant. (Hint: Write Force 1 as a vector in the direction of the positive x-axis, and Force 2 as a vector at an angle theta with the positive x-axis.)
Force 1 = 3000 pounds
Force 2 = 1000 pounds
Resultant Force = 3750 pounds

How do you solve this problem? Would you write Force 1 and Force 2 in a component form, like <3000, 1000>?

2007-01-08 12:51:36 · 5 answers · asked by Anonymous in Mathematics

- Why was it -59 degrees C (-74 F) in Siberia today?

- Why is it so cold in India that 300 people have frozen to death in recent days?

- Why has Denver had over 6 feet of snow in the last few weeks?

Explanation, please.

2007-01-08 12:50:57 · 7 answers · asked by Anonymous in Weather

This question was proposed in my chem class, because the first periodic table(which was based on atomic mass) appeared in 1869, however atomic mass wasn't found till 1913. Currious?

2007-01-08 12:48:54 · 6 answers · asked by Liza 1 in Chemistry

2007-01-08 12:46:36 · 21 answers · asked by jim halpert 2 in Weather

I have never studied this at all and would like to find out something about what to expect when I take a calculus course. Someone said it 'takes time out of the equation...'. What were they talking about?

2007-01-08 12:45:09 · 11 answers · asked by ginarene71 5 in Mathematics

This is NOT homework :]

We have asked everyone we know and they do not know.

2007-01-08 12:44:44 · 2 answers · asked by Anonymous in Mathematics

2007-01-08 12:44:06 · 7 answers · asked by barry g 1 in Engineering

2007-01-08 12:43:37 · 5 answers · asked by Anonymous in Astronomy & Space

i really need help with my algebra!!! i have a test tomorrow nd if i fail it.....i mite fail this whole school year so PLZZZ Help me!

2007-01-08 12:42:02 · 5 answers · asked by FreshPrincessOfNewYork 3 in Mathematics

0

If y varies directly with x, and y=18 when x=-2, find the constant of variation. Find x when y=6

2007-01-08 12:40:51 · 3 answers · asked by taylor p 1 in Mathematics

2007-01-08 12:40:47 · 1 answers · asked by Anonymous in Mathematics

f(x) = x^5 - 3x^4 - 4x^3 + x^2 - 3x - 4; x + 1

2007-01-08 12:38:13 · 5 answers · asked by jdrgearup 1 in Mathematics

Calculate the pH of 10.00 mL of 0.100 M HCL after adding 10.00 mL of indicator solution. Round the pH to three sig figs.

2007-01-08 12:38:02 · 2 answers · asked by nitral2344 1 in Chemistry

(x^5 + x^ -2) / x^3

In words:

x to the 5 power plus x to the -2 power over (divided by) x to the 3 power.

2007-01-08 12:36:35 · 6 answers · asked by Anonymous in Mathematics

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