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

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 63 times)

tfester

  • Hero Member
  • *****
  • Posts: 534
on: Jul 28, 2018
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
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

D


tfester

  • Member
  • Posts: 534
Reply 2 on: Jul 28, 2018
Gracias!

scikid

  • Member
  • Posts: 300
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

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?

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?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Upward transport of water in xylem. Upward transport of water in xylem.
Rates of water loss by two turtles and a tortoise indicate an inverse relationship between the dryne Rates of water loss by two turtles and a tortoise indicate an inverse relationship between the dryne
Taking a Patient’s Oral Temperature with an Electronic Thermometer Taking a Patient’s Oral Temperature with an Electronic Thermometer
Hand Washing Using Soap and Water Hand Washing Using Soap and Water
Claude Monet, Bridge over a Pool of Water Lilies. Claude Monet, Bridge over a Pool of Water Lilies.
Change in air temperature at various air flow rates for a 2 pass operation Change in air temperature at various air flow rates for a 2 pass operation
Video: Structures that affect circulation - arterioles and vasomotor responses and venous return

For a complete list of videos, visit our video library