This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: If a plane is flying at a speed so that the apex half-angle of its shockwave is 30, what is its ... (Read 219 times)

BrownTown3

  • Hero Member
  • *****
  • Posts: 564
on: Jul 28, 2018
If a plane is flying at a speed so that the apex half-angle of its shockwave is 30, what is its speed if the speed of sound is 320 m/s?
 a. 960 m/s
  b. 640 m/s
  c. 320 m/s
  d. 160 m/s
  e. Choose this answer if a shock wave cannot form in this situation.

Question 2

If a supersonic plane is flying at increasing speed as the temperature decreases, what happens to the Mach number in this instance?
 a. It stays the same.
  b. It increases.
  c. It decreases.
  d. It can do any of the above.
  e. It can do either (a) or (b) but not (c).


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Jossy

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

b


BrownTown3

  • Hero Member
  • *****
  • Posts: 564
Reply #2 on: Jul 28, 2018
TY


Jossy

  • Sr. Member
  • ****
  • Posts: 336
Reply #3 on: Jul 28, 2018
You're welcome


« previous next »
 

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Variations in Solar Angle with Latitude Variations in Solar Angle with Latitude
Surface winds travel at an angle across isobars, toward low pressure. Surface winds travel at an angle across isobars, toward low pressure.
How to solve a half life problem involving exponential models (Question 1) How to solve a half life problem involving exponential models (Question 1)
People with night eating syndrome may consume more than half their day's calories between 8 pm ... People with night eating syndrome may consume more than half their day's calories between 8 pm ...
A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ... A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ...
Carbon-11 is used in medical imaging. The half-life of this radioisotope is 20.4 min. What ... Carbon-11 is used in medical imaging. The half-life of this radioisotope is 20.4 min. What ...
Video: Attention Deficit Disorder (ADD)

For a complete list of videos, visit our video library