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

Author Question: What part of the human ear acts as the first resonator in the system? a. The eardrum. b. The ... (Read 20 times)

mrsjacobs44

  • Hero Member
  • *****
  • Posts: 500
on: Jul 28, 2018
What part of the human ear acts as the first resonator in the system?
 a. The eardrum.
  b. The middle ear.
  c. The ear lobes.
  d. The ear canal.
  e. The inner ear.

Question 2

How does sonar work?
 a. It measures the speed of sound by timing how long it takes sound to travel.
  b. It compares the speed of sound under different circumstances, by changing temperature or gas content.
  c. It compares the frequencies of the emitted and reflected sound wave.
  d. It measures the distance to underwater objects by bouncing sound waves off the objects.
  e. It measures the distance to objects in the upper atmosphere by timing the speed of sound to those objects.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nickk12214

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

d


mrsjacobs44

  • Hero Member
  • *****
  • Posts: 500
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


nickk12214

  • Sr. Member
  • ****
  • Posts: 332
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

A human pedigree containing inbreeding. A human pedigree containing inbreeding.
Eye Color Is a Sex-Linked Trait in Drosophila (Part 2) Eye Color Is a Sex-Linked Trait in Drosophila (Part 2)
inflammatory system inflammatory system
Pressure testing the cooling system. A typical hand-operated pressure tester applies pressure equal ... Pressure testing the cooling system. A typical hand-operated pressure tester applies pressure equal ...
When checking a waste spark-type ignition system, check that the secondary wires are attached to the ... When checking a waste spark-type ignition system, check that the secondary wires are attached to the ...
Essentials of Human Communication (6th Edition) Essentials of Human Communication (6th Edition)
Video: Role of transport in a cell

For a complete list of videos, visit our video library