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

Author Question: What is the intensity level in decibels of a sound with intensity 10-3 W/m2? The threshold of human ... (Read 129 times)

Lisaclaire

  • Hero Member
  • *****
  • Posts: 569
on: Jul 29, 2018
What is the intensity level in decibels of a sound with intensity 10-3 W/m2? The threshold of human hearing is 1.0  10-12 W/m2.
 
  A) 30 dB
  B) 60 dB
  C) 90 dB
  D) 96 dB

Question 2

Three resistors of 12 , 12 , and 6.0  are connected together, and an ideal 12-V battery is connected across the combination. What is the current through the battery if they are connected (a) in series or (b) in parallel?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Anton

  • Sr. Member
  • ****
  • Posts: 302
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

(a) 0.40 A (b) 4.0 A


Lisaclaire

  • Hero Member
  • *****
  • Posts: 569
Reply #2 on: Jul 29, 2018
Thanks


Anton

  • Sr. Member
  • ****
  • Posts: 302
Reply #3 on: Jul 29, 2018
Welcome :)


« previous next »
 

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?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

The hemispheres of the human brain. The hemispheres of the human brain.
2006 Data:Top 25 Substances Involved in Human Exposures 2006 Data:Top 25 Substances Involved in Human Exposures
Sound Localization Sound Localization
Events in human fertilization. The light micrograph shows a fertilized human oocyte. Events in human fertilization. The light micrograph shows a fertilized human oocyte.
Human sense of smell Human sense of smell
Human development grade 1 Human development grade 1
Video: Prone Position

For a complete list of videos, visit our video library