Question

The Mach cone formed on the top of a rocket has a half angle of 15 ∘.

Part A

If the air temperature is −20∘C, determine the speed of the rocket.

V=

Answer #1

The sound speed changes with medium. Determine the sound speed
that reflect a half angle of The Mach cone of 30 degrees. Under
this condition, the source speed is 400m/s.
Determine the medium density if the Bulk Modulus is 200,000

In photography, the angle formed by the top of the
subject, the camera, and bottom of the subject is called the
viewing angle, as shown at the right. Natalie is taking a picture
of Bigfoot #5 which is 15 feet 6 inches tall. She sets her camera
on a tripod that is 5 feet above ground level. The vertical viewing
angle of her camera is set for 90°.
How far away from the truck should Natalie stand so
that she...

A right circular cone whose vertex angle is 90deg has a diameter
of sphere as its axis and has its vertex on the sphere. Determine
the ratio of the volume of the cone to that of sphere.

A symmetric converging-diverging nozzle with an area ratio of 2
encounters a 700 m/s flow of air at 50 kPa and 27oC.
From the same turbojet engine, supersonic air at Mach 3 and 75
kPa impinges on a two-dimensional wedge of half-angle
10o. Determine the following:
a. The two possible
oblique shock angles that could be formed by this wedge
b. The pressure downstream of
the oblique shock for each case
c. The Mach number
downstream of the oblique shock for each case

A circular cone is 10 cm wide at the base and has a slant height
of 8.5 cm. Determine:
a. Volume of the cone =
b. Total surface area of the cone =
c. The angle the slant height makes with the base diameter =
d. The cylinder shown here has the same height and base radius
as the cone, by what percent the volume of
the cylinder exceeds the volume of the cone?

A small rocket probing the atmosphere has a length of 3 m. It is
fired vertically upward through the atmosphere, its average
velocity being 1000 m/s. Consider the flow over the rocket at this
average velocity at altitudes of 30,000 and 80,000 m. Can the air
flow over the rocket be assumed to be continuous at these two
altitudes? At an altitude of 30,000 m, the air has a temperature,
pressure, and viscosity of ?55°C, 120 Pa, and 1.5 ×...

The top half of the ring with radius R is "+ Q", the
bottom half is "-Q". On its axis, the charged particle "Q", 10R
from the center, has the speed "Vo". What will be its speed when
the particle comes to 3R?
Q=5,0 C
R=6,0 cm
k=9×10^9 N×m^2/C^2
q=2,0 C
m= 2,0×10^16 kg
V0= 5,0×10^4 m/s

8) A football is kicked off the flat ground at 26.0 m/sat an
angle of 30∘ relative to the ground.
a) Determine the total time it is in the air.
b) Find the angle of its velocity with respect to the ground
after it has been in the air for one-fourth of this time
c) Repeat for one-half of the total time.
d) Repeat for three-fourths of the total time.
e) For each of these times, determine its speed.

A sound wave is traveling in warm air when it hits a layer of
cold, dense air. If the sound wave hits the cold air interface at
an angle of 20 ?, what is the angle of refraction? Assume that the
cold air temperature is -10 ?C and the warm air temperature is +20
?C. The speed of sound as a function of temperature can be
approximated by v=(331+0.60T)m/s, where T is in ?C. Express your
answer to two significant...

A projectile is fired with an initial speed of 48.6 m/sat an
angle of 44.2 ∘ above the horizontal on a long flat firing
range.
Part A
Determine the maximum height reached by the projectile.
ymax =
nothing
m
SubmitRequest Answer
Part B
Determine the total time in the air.
t =
nothing
s
SubmitRequest Answer
Part C
Determine the total horizontal distance covered (that is, the
range).
Δx =
nothing
m
SubmitRequest Answer
Part D
Determine the speed of...

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