Author Question: Which doesn't belong to the same family? A) infrasonic waves B) ultrasonic waves C) radio waves ... (Read 161 times)

EY67

  • Hero Member
  • *****
  • Posts: 531
Which doesn't belong to the same family?
 
  A) infrasonic waves
  B) ultrasonic waves
  C) radio waves
  D) shock waves
  E) longitudinal waves

Question 2

A sonic boom cannot be produced by
 
  A) an aircraft flying slower than the speed of sound.
  B) a whip.
  C) a speeding bullet.
  D) all of the above



macagn

  • Sr. Member
  • ****
  • Posts: 345
Answer to Question 1

Answer: C

Answer to Question 2

Answer: A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

For a complete list of videos, visit our video library