Download the App!
Get 24/7 study help with the Numerade app for iOS and Android! Enter your email for an invite.
Question
Answered step-by-step
(II) A space probe enters the thin atmosphere of a planet where the speed of sound is only about 45 $\mathrm{m} / \mathrm{s}$ . (a) What is the probe's Mach number if its initial speed is $15,000 \mathrm{km} / \mathrm{h} ?$(b) What is the angle of the shock wave relative to the direction of motion?
Video Answer
Solved by verified expert
This problem has been solved!
Try Numerade free for 7 days
Like
Report
Official textbook answer
Video by Salamat Ali
Numerade Educator
This textbook answer is only visible when subscribed! Please subscribe to view the answer
Physics 101 Mechanics
Chapter 16
Sound
Periodic Motion
Mechanical Waves
Sound and Hearing
University of Washington
Hope College
University of Sheffield
University of Winnipeg
Lectures
08:15
In physics, sound is a vibration that typically propagates as an audible wave of pressure, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the reception of such waves and their perception by the brain. Humans can only hear sound waves as distinct pitches when the frequency lies between about 20 Hz and 20 kHz. Sound above 20 kHz is known as ultrasound and has different physical properties from sound below 20 kHz. Sound waves below 20 Hz are called infrasound. Different species have different hearing ranges. In terms of frequency, the range of ultrasound, infrasound and other upper limits is called the ultrasound.
04:49
In physics, a traveling wave is a wave that propogates without a constant shape, but rather one that changes shape as it moves. In other words, its shape changes as a function of time.
03:49
A space probe enters the t…
01:39
02:08
02:12
(II) A space probe enters …
01:40
A large meteoroid enters t…
04:14
(II) An airplane travels a…
01:50
A jet plane passes over yo…
03:12
An airplane travels at Mac…
A meteoroid the size of a …
01:44
05:22
05:53
03:03
$A F$ fet plane passes ove…
03:48
The shock-wave cone create…
in, but a off this problem, we are us to find the mash number. Magic number back number represented by M. Mac number is defined as it were lost he off or a speed of an object producing a sound and or the sound speed, which is, uh, represented by V s. So, um, the speed of sound. It is given 45 meter 45 meters per second. And by plugging the speed off the object even and converting into a meter per second, then Magnum, where we get here is approximately approximately 93. But be we are asked to find what is the angle off the shockwave related to their direction off the motion. So we have to find the angle. You know, the relationship off a object speed to the sound is, uh, speed of the sound or the speed of an object. Then we can write the dead, uh, which is simply sign in worse off signing your social. This very but we know this is simply one or M. This is a one or a mac number, so we can just like the one we're in here. And, uh, we know we already found the value off em here. So we can plug this value here 93 and find one over 93 take the in. Worse off that, then the angle here we get here is 0.6 two degrees. End off the problem. Thank you for watching.
View More Answers From This Book
Find Another Textbook
01:27
What is the radius of the curvature mirror
01:22
A string of linear density 6.0 g/m is under a tension of 180n. what is the v…
02:48
1) a mass is attached to a spring of spring constant 60 n/m along a horizont…
05:45
A small aircraft of mass 1200 kg is cruising at 250 km/h at an altitude of 2…
01:07
please solve this asap
02:25
Please help in finding the magnetic field strength that would be required to…
02:30
The magnitude of a force vector F→ is 81.3 newtons (N). The x component of t…
03:30
9. A dwelling is heated using electric heaters. Each one is rated at 4 kW.
04:07
Car A uses tires for which the coefficient of static friction is 0.262 on a …
04:56
Only two forces act on an object (mass=3.19 kg), as in the drawing. Find (a)…
