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Please help me with my math!

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TurtIe Tracks

PostPosted: Mon Feb 23, 2009 9:38 pm


And I am posting this here because I figure that a lot of Asians will be smart enough to understand it. :[

"An airplane flying faster than sound sends out waves that form a cone. The cone intersects the ground to form a hyperbola. As this hyperbola passes over a particular point on the ground, a sonic boom is heard at that point. If θ is the angle at the vertex of the cone, then sin(θ/2) = 1/m where m is mach number for the speed of the plane. The mach number is the ratio of the speed of the plane and the speed of sound. Find θ if m = 3/2"

I don't want the answer, just someone please explain to me how to solve it? Thanks...

Edit: By plugging it in and using half-angle identities, I think I understand this... but what's the significance of the word part? Major confusiion....
PostPosted: Tue Feb 24, 2009 4:21 pm


WHAT!?
i lost

x_iwolfe


Sesshomaruka

PostPosted: Tue Feb 24, 2009 7:01 pm


lol what grade is this math ?

is this like trigonometry ?
PostPosted: Tue Feb 24, 2009 8:19 pm


.:Epic Fail:.
I got lost at:

"1/m where m is mach number"

Asian smarties, are sterotypes..Not all asians are smart..Me being part of the category. ^-^

M e e G g y


s u n n y _ l o t u s

PostPosted: Wed Feb 25, 2009 4:29 pm


Ummm...sorry... sweatdrop
I need help on that problem, too. crying
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