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

Author Question: Sonar is used to determine the speed of an object. A 40.0-kHz signal is sent out, and a 42.0-kHz ... (Read 36 times)

jjjetplane

  • Hero Member
  • *****
  • Posts: 556
on: Jul 29, 2018
Sonar is used to determine the speed of an object. A 40.0-kHz signal is sent out, and a 42.0-kHz signal is returned. If the speed of sound is 345 m/s, how fast is the object moving?
 
  A) 6.9 m/s
  B) 8.4 m/s
  C) 331 m/s
  D) 347 m/s

Question 2

A 0.150-kg cart that is attached to an ideal spring with a force constant (spring constant) of 3.58 N/m undergoes simple harmonic oscillations with an amplitude of 7.50 cm. What is the total mechanical energy of the system?
 
  A) 0.0201 J
  B) 0.0101 J
  C) 0.269 J
  D) 0.134 J
  E) 0 J
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

qytan

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 50% of students answer this correctly


jjjetplane

  • Hero Member
  • *****
  • Posts: 556
Reply #2 on: Jul 29, 2018
Thank you!


qytan

  • Sr. Member
  • ****
  • Posts: 336
Reply #3 on: Jul 29, 2018
Always glad to help...


« previous next »
 

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

An overview of plant signal transduction. An overview of plant signal transduction.
The Speed of Light Is Constant The Speed of Light Is Constant
MAP sensors use three wires: 1.5 volt reference from the PCM 2. Sensor signal (output signal) 3. ... MAP sensors use three wires: 1.5 volt reference from the PCM 2. Sensor signal (output signal) 3. ...
Knoop’s experiments to determine the b-oxidation of fatty acids Knoop’s experiments to determine the b-oxidation of fatty acids
How to determine the commission of a sale How to determine the commission of a sale
Sidescan and Multibean Sonar Sidescan and Multibean Sonar
Video: Role of the respiratory system - effect of altered ventilation rates

For a complete list of videos, visit our video library