a) The altitude at which the flight is flying is given as
18000m. The time taken for the sound to travel this distance of
18000 m is given by the equation
where
is the velocity of sound in air and
is the distance between
the flight and the observer, ie 18000 m.
b) the plane is travelling at Mach 2.10. that means its
travelling 2.10 times faster than the speed of sound in undisturbed
air. the speed of sound in undisturbed air is 332m/s. this would
mean that the flight travelled
away from the original position.
if we take a right angled triangle, with one of the sides as 18000 m and other as 17838.36, then we can find the indicated angle.
when we take the tangent of the given angle, as given from the
figure,
this is an exact calculation. Instead, if we substitute Mach 2.10 velocity value as 335 m/s, the horizontal distance travelled by the plane would come to about 17999.5 m and when we find the angle, it would come to 45 degrees. so for calculation purpuse, we can take Mach velocity as 335, but officially, Mach 1 value would mean 332m/s.
A supersonic jet traveling at Mach 2.10 at an altitude of h 18,000 m is directly...
A supersonic jet traveling at Mach 2.00 at an altitude of h=23,000 m is directly over a person at time t=0 as shown in the figure below. Assume the average speed of sound in air is 335 m/s over the path of the sound. a) At what time will the person encounter the shock wave due to the sound emitted at t=0 in s b) Where will the plane be when this shock wave is heard? Give the plane's horizontal...
A supersonic jet traveling at Mach 2.5 at an altitude of 2x10^4 m is directly ovwer a person at time t = 0. Assume the average speed of sound in the air is 335m/s over the path of the sound. At what time will th eperson encounter the shock wave due to the sound emitted at t = 0?
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An airplane is flying at Mach 1.63 at an altitude of 7,200.00 meters, where the speed of sound is v = 314.33 m/s. How far away from a stationary observer will the plane be when the observer hears the sonic boom? (Enter the total distance in m.)
A jet flies at M = 2.3 when it is at an altitude of 18 km. The plane just passes overhead of a ground observer. (a) Sketch the situation for graphical illustration of Mach cone. (b) Calculate the Mach angle. (c) Determine the time lapse to hear the sound of the plane just after the plane passes overhead.
A jet plane passes over you at a height of 4990 m and a speed of Mach 1.75. (a) Find the Mach cone angle. (b) How long after the jet passes directly overhead does the shock wave reach you? Use 331 m/s for the speed of sound.
when a figher jet travels faster than sound it generates a sonic boom shock wave in the shape of a cone. if the plane is flying at a constant altitude, this cone intersects the ground in the shape of one branch of a hyperbola. suppose a jet is flying north at level altitude and at a speed of 500 m/s ( which is a supersonic speed). in this model let the position of the jet be the origin. the vertix...
1. A jet plane passes overhead at Mach 2.5. The jet is flying at an altitude of h = 8000m. Assuming that the speed of the sound is 340 ms-1. (a) Compute the shockwave angle (Mach cone angle) of the moving jet. (b) How long does it take for the shockwave to reach the observer on the ground? A ray of light from air (nair = 1) strikes a flat block of glass (nı = 1.39) of thickness d= 70...