Science & Mathematics - 4 September 2007

Applying Bernoulli's theorem to the steam nozzle,

(p1/density*g)+((v1^2)/(2*g))+z1=(p2/density*g)+((v2^2)/(2*g))+z2........(1)

do we get,

(p1/density*g)-(p2/density*g)=((v2^2)/(2*g))-((v1^2)/(2*g))........(a)

since,
by can celling z1 and z2,

Is z1 always equal to z2 for steam nozzle?

There is another equation similar to the above mentioned equation 1 ie...,
(h1)+((v1^2)/2)+z1*g+Q=(h2)+((v2^2)/2)+z2*g+W.............(2)

In what cases do we apply equation (2)?

plz explain the terms in equation (2).

When to apply equation (2) for steam nozzle?and when to apply equation (1) for steam nozzle?

If equation (a) is true then can we say nozzle converts pressure drop into gain in kinetic energy?

It is said that nozzle converts heat energy into kinetic energy?can u plz explain how is it possible?

These questions keeps on haunting my mind!!
My heartily request is to please answer all or at least few of these questions.
Thanking you!!!!

2007-09-04 21:07:55 · 3 answers · asked by C P 1 in Physics

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I need help with Mathy Math?

If the interger being subtracted is GREATER than the other interger, is the answer is negative or positive?

If the interger being subtracted is LESS than the other interger, is the answer is negative or positive?

I know it's Grade 5 Math.

2007-09-04 21:06:57 · 7 answers · asked by SCOOOOOOByyyyyyyyyyyyyyy-dddooo! 2 in Mathematics

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what is the logic control?

i want to know about the question asked and later all these where it work

2007-09-04 20:59:49 · 3 answers · asked by j4 1 in Engineering

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do u eat dog meat?

i just want to know...

2007-09-04 20:59:15 · 4 answers · asked by alaska_princess_27 1 in Zoology

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What if ultrasonics are incorperated into blades of melee weapons?

I heard of blades that are used to cut bones have ultrasonics vibrations.

2007-09-04 20:50:14 · 1 answers · asked by Animator 1 in Engineering

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can robots be sent into space?

Instead of sending man into space i feel its safe to send robots.Is it possible?

2007-09-04 20:49:44 · 17 answers · asked by Ilavarasan 1 in Astronomy & Space

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Find the exact value of sin (pi/3-pi/4)?

Find the exact value of sin (pi/3-pi/4)

2007-09-04 20:45:48 · 6 answers · asked by Anonymous in Mathematics

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How many satellites has Saturn as of today?

2007-09-04 20:44:24 · 6 answers · asked by Asker 6 in Astronomy & Space

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Do female monkeys menstruate?

Do all female monkeys menstruate? How old do they have to be in order to start it? How do they deal with it? The blood just comes out and that's it? Does it also take approximately a month till the next cycle? Everything you know about this issue would be interesting...!

2007-09-04 20:36:48 · 5 answers · asked by Anonymous in Zoology

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limits question help please?

lim x-9/sqrt(x) - 3 as x approaches 9

2007-09-04 20:34:02 · 2 answers · asked by 2789 2 in Mathematics

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help please....?

Tom leaves Detroit at 9:00 pm and drives at a constant speed west along I-96. He passes Ann Arbor, 40 mi from Detroit, at 9:40 pm.

a- express the distance traveled in terms of the time (in hours) elapsed.

b- what does the slope represent?

2007-09-04 20:31:59 · 2 answers · asked by Rrrr0001 1 in Mathematics

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Find the exact value of tan(sin^ -1((-4/5))?

Find the exact value of tan(sin^ -1((-4/5))

2007-09-04 20:28:13 · 7 answers · asked by Anonymous in Mathematics

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What is Rayleigh scattering?

2007-09-04 20:25:17 · 2 answers · asked by Asker 6 in Geography

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Do you that that NASA Gordo Monkey is in space somewhere?

2007-09-04 20:21:28 · 2 answers · asked by Anonymous in Astronomy & Space

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Find the exact value of cos^ -1((cos(4pi/3))?

Find the exact value of cos^ -1((cos(4pi/3))

2007-09-04 20:19:54 · 3 answers · asked by Anonymous in Mathematics

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SPACE IS INFINITE, can we really comprehend it?

can we really comprehend it?

i mean sure it is easy to say it..see
SPACE IS INFINITE

but can you really grasp the concept that it never actually ends. its not a sphere where you can keep going in circles forever, i mean it streches forever in every direction. i mean it literally streches forever. its mind boggling to think that it NEVER ends. i mean at times you think that the earth is there, and it ends, just like a road, a city, a county, a state, a country everything, it just ends. yet in reality nothing ever has to end. because you will never run out of space, there is always more, even billions or trillions of years from now there will be more space, and billions or trillions of years from then, the space will never run out, because it never ends.

**I AM NOT TALKING ABOUT THE UNIVERSE.**
i am talking about what is outside of the known universe.

2007-09-04 20:17:17 · 6 answers · asked by Deleted 2 in Astronomy & Space

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Did you ever see an UFO?

2007-09-04 20:15:39 · 10 answers · asked by Anonymous in Astronomy & Space

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what are some math parlor tricks?

2007-09-04 20:13:20 · 1 answers · asked by Kel 2 in Mathematics

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If possible, choose k so that the following function is continuous on any interval...?

f(x) = ( 5x^3-10x^2 ) / ( x - 2 ) x not equal to 2

k x equal to 2

2007-09-04 20:09:43 · 4 answers · asked by i<3WL 2 in Mathematics

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Find the net electric field magnitude and direction) at the origin.?

Help please!

Two charges are located along the x axis: q1 = +6.0 µC at x1= +4.0 cm, and q2 = +6.0 µC at x2 = -4.0 cm. Two other charges are located on the y axis: q3 = +3.0 µC at y3 = +5.0 cm, and q4 = -8.0 µC at y4 = 7.0 cm. Find the net electric field magnitude and direction) at the origin.

2007-09-04 20:09:01 · 3 answers · asked by GSU 1 in Physics

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