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

Author Question: By how many decibels does the intensity level of a sound increase when you triple the intensity of a ... (Read 72 times)

Zoey63294

  • Hero Member
  • *****
  • Posts: 539
on: Jul 29, 2018
By how many decibels does the intensity level of a sound increase when you triple the intensity of a source of sound?
 
  A) 12 dB B) 3.0 dB C) 4.8 dB D) 6.0 dB E) 9.5 dB

Question 2

A shear force of 400 N is applied to one face of an aluminum cube having sides of 30 cm each. What is the resulting displacement of this face of the cube if the opposite face is held fixed? The shear modulus for aluminum is 2.5  1010 N/m2.
 
  A) 8.2  10-8 m B) 1.9  10-8 m C) 4.4  10-8 m D) 5.3  10-8 m


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

gabrielle_lawrence

  • Sr. Member
  • ****
  • Posts: 353
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

D


Zoey63294

  • Member
  • Posts: 539
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

xiazhe

  • Member
  • Posts: 331
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Does this child have legs of different lengths or scoliosis? Look at the level of the iliac crests a Does this child have legs of different lengths or scoliosis? Look at the level of the iliac crests a
Reaction 7: The First Substrate-Level Phosphorylation Reaction 7: The First Substrate-Level Phosphorylation
Unusual base pairings in tRNA: (c, d) Some examples of triple interactions Unusual base pairings in tRNA: (c, d) Some examples of triple interactions
Normal change in sea level Normal change in sea level
Effect of an Increase in gA,2 on Productivity and Output Effect of an Increase in gA,2 on Productivity and Output
How high a hill would a 75-kg hiker have to climb to increase her gravitational potential ... How high a hill would a 75-kg hiker have to climb to increase her gravitational potential ...
Video: Acids and bases - definition

For a complete list of videos, visit our video library