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

Author Question: A line representing a wave front for a wave should be drawn: a. from the source to the receiver. ... (Read 209 times)

storky111

  • Hero Member
  • *****
  • Posts: 561
on: Jul 28, 2018
A line representing a wave front for a wave should be drawn:
 a. from the source to the receiver.
  b. from one crest to the preceding crest.
  c. in the direction the wave is moving.
  d. along one of the crests of the wave.

Question 2

A 20-kg piece of aluminum (which has a specific heat of 900 J/kg  C) is warmed so that its temperature increases by 5.0C. How much heat was transferred into it?
 a. 4.5  104 J
  c. 1.4  105 J
  b. 9.0  104 J
  d. 2.0  105 J


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

elyse44

  • Sr. Member
  • ****
  • Posts: 319
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

B


storky111

  • Hero Member
  • *****
  • Posts: 561
Reply #2 on: Jul 28, 2018
Thanks


elyse44

  • Sr. Member
  • ****
  • Posts: 319
Reply #3 on: Jul 28, 2018
Welcome :)


« previous next »
 

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

In most ecosystems, sunlight provides the ultimate source of energy to power all biological activity In most ecosystems, sunlight provides the ultimate source of energy to power all biological activity
Lilly Martin Spenser’s painting, Domestic Happiness (1844), reflects the change in attitudes toward Lilly Martin Spenser’s painting, Domestic Happiness (1844), reflects the change in attitudes toward
Cold front Cold front
Localizing the Source of High-Frequency Sounds Localizing the Source of High-Frequency Sounds
How to graph line equations without a table of values How to graph line equations without a table of values
Find the equation of the normal line to f(x)=sinx+cosx at x = π. Find the equation of the normal line to f(x)=sinx+cosx at x = π.
Video: Integumentary Anatomy

For a complete list of videos, visit our video library