Science & Mathematics - 11 December 2006

2006-12-11 00:35:47 · 3 answers · asked by Anonymous in Mathematics

2006-12-11 00:35:41 · 2 answers · asked by sai 1 in Engineering

where a is a constant and i and j are unit vectors directed north and east respectively.

a) The boat is heading due north when t = 2. Find a?

b) Find:
i) the initial velocity of the boat?
ii) the acceleration of the boat?

c) Find the distance between the initial position of the boat and its position when t = 2??

2006-12-11 00:30:16 · 5 answers · asked by Ritch 3 in Physics

just like solar heat solar colours can be utilised for various commercial use which will not be harmfull to atmosphere and health?

2006-12-11 00:30:00 · 2 answers · asked by gopalakrishnan c 1 in Astronomy & Space

2006-12-11 00:25:38 · 2 answers · asked by student_90 2 in Chemistry

I need a model which is upto the standard of class ninth. It can be related to anything in the syllabus of maths of the grade like - surface areas, circles etc....

2006-12-11 00:25:21 · 2 answers · asked by Anonymous in Mathematics

f(x)= 3x-2
--------
x+7

Find the inverse function of f and show they are inverses.
the 3x-2 is over the x+7, I just didn't know how to put it into the computer any other way. Please show work.

2006-12-11 00:24:23 · 5 answers · asked by Anonymous in Mathematics

2006-12-11 00:21:16 · 16 answers · asked by amalan l 1 in Other - Science

Iam not clear enough to provide details.

2006-12-11 00:19:49 · 5 answers · asked by harshini m 1 in Physics

Time, t is measured in seconds.

At time t= 10 the boat is at the point A, which has position vector (30i - 35j) metres.
At time t = 20, the boat is at the point B, which has a position vector (70i - 40j) metres.

a) Find the vector AB?

b)Find the velocity of the boat when t = 10?

c) Using your answer from part (b), find the velocity f the boat when t = 0?

d) Find the postion vector of the boat when t = 0?

2006-12-11 00:19:20 · 2 answers · asked by Ritch 3 in Mathematics

2006-12-11 00:15:30 · 12 answers · asked by Anonymous in Mathematics

It's got something to do with the cell process, yes?

2006-12-11 00:11:55 · 5 answers · asked by Kristi H 2 in Biology

my intention is N-pole Vs N-pole magnets develop repulsion force if they are placed in the shock absorber of a bike, the total wt. of the bike is neutralised (since the total wt. of the bike is transfered to the wheel is through shocks)which will reduce the load on engine and we can save fuel . what is the proceedure and strength of the magnets required to achive this result.

2006-12-11 00:09:07 · 3 answers · asked by Anonymous in Engineering

2006-12-11 00:09:01 · 2 answers · asked by nObOdYs_fOoL 2 in Chemistry

2006-12-11 00:08:23 · 5 answers · asked by rOb w 1 in Zoology

ABCD is any quadrilateral having each of its sides tangent to a circle of diameter 9 cm. If the perimeter of ABCD is 56 cm, what is the area of ABCD?

2006-12-11 00:07:30 · 5 answers · asked by Anonymous in Mathematics

2006-12-11 00:04:09 · 10 answers · asked by Anonymous in Zoology

It is designated with Uo/U where Uo is the rated voltage between /the/ conductor and /the/ metal covering or the ground, and U is the rated voltage between /the/ phases` conductors and a three-phase system U=√ 3.Uo. Rated voltage data and power cables maximum admissible voltage Um data are/is/ given in the following table:

2006-12-11 00:02:42 · 4 answers · asked by Effy 1 in Engineering