Recent content by DmX0rZ

thanks anyway man. youve been great ! good night :D

HEY MAN, i think i finally got it: first equation - nb of machs : machs = velocity of plane / velocity of sound second - distance ratio: tan(angle) = x/900 third: velocity of plane / velocity of sound = 1/sin(angle) fourth: x = velocity of plane * 2.2 secondes x is...

thanks for the help !

I mentionned in my post, c is the velocity of sound, in this problem we use c = 331.4 Plane is at 900 meters above my head and i hear the sound after 2.2 seconds, that's all i got.

How do i find the angle, that's the question :/

nah we've been threw this section so fast, only thing i have is vs = c / sin(angle) and machs = vs/c = 1 / sin(angle)where vs is velocity of thing moving, c is velocity of sound

i made a drawing

do you mean tan(angle) = 2.2/900 ?

1. Homework Statement A plane passes from 900 meters over my head. I hear the shockwave after 2.2 seconds. At what speed in Mach is the plane flying ? Speed of sound = 331. 4 m/s 2. Homework Equations Machs = speed of plane / speed of sound 3. The Attempt at a Solution I don't...

Homework Statement A plane passes from 900 meters over my head. I hear the shockwave after 2.2 seconds. At what speed in Mach is the plane flying ? Speed of sound = 331. 4 m/s Homework Equations Machs = speed of plane / speed of sound The Attempt at a Solution I don't have any clue where...