This topic contains a solution. Click here to go to the answer

Author Question: A boat sounds a fog horn on a day when both the sea water and the air temperature are 25.0 C. The ... (Read 54 times)

tfester

  • Hero Member
  • *****
  • Posts: 534
A boat sounds a fog horn on a day when both the sea water and the air temperature are 25.0 C. The speed of sound in sea water is 1 533 m/s. How much earlier (in s) does a dolphin 1 000 m from the source hear the sound than a person in a boat that is also 1 000 m distant? (Ignore the time it takes the sound to reach the water surface.)
 a. 0.652
  b. 2.12
  c. 2.24
  d. 2.77
  e. 2.90

Question 2

Earthquake waves are classified as P waves and S waves. Which of the following statements is true about these waves?
 a. The P wave is transverse as is the S wave. b. The P wave is longitudinal as is the S wave. c. The P wave is transverse and the S wave is longitudinal.
  d. The P wave is longitudinal and the S wave is transverse. e. Both the P and S waves are mixtures of longitudinal and transverse waves.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Natalie4ever

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

C

Answer to Question 2

D




tfester

  • Member
  • Posts: 534
Reply 2 on: Jul 28, 2018
:D TYSM


xthemafja

  • Member
  • Posts: 348
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

For a complete list of videos, visit our video library