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

Author Question: A concave mirror has radius R. When an object is located a distance 2R from the lens, which ... (Read 87 times)

sarasara

  • Hero Member
  • *****
  • Posts: 521
on: Jul 28, 2018
A concave mirror has radius R. When an object is located a distance 2R from the lens, which describes the image formed?
 a. real, inverted, reduced
  c. virtual, upright, reduced
  b. real, inverted, of equal size
  d. real, inverted, enlarged

Question 2

A metal bar is used to conduct heat. When the temperature at one end is 100C and at the other is 20C, heat is transferred at a rate of 16 J/s. If the temperature of the hotter end is reduced to 60C, what will be the rate of heat transfer?
 a. 4 J/s
  c. 9 J/s
  b. 8 J/s
  d. 12 J/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

katieost

  • Sr. Member
  • ****
  • Posts: 358
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

B


sarasara

  • Hero Member
  • *****
  • Posts: 521
Reply #2 on: Jul 28, 2018
TY


katieost

  • Sr. Member
  • ****
  • Posts: 358
Reply #3 on: Jul 28, 2018
You're welcome


« previous next »
 

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

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.

Mirror trick Mirror trick
Visual Object Agnosia Without Prosopagnosia Visual Object Agnosia Without Prosopagnosia
Major trunk lines carrying long-distance traffic crisscrossed the area east of the Mississippi. The Major trunk lines carrying long-distance traffic crisscrossed the area east of the Mississippi. The
These photos show a rat burying a test object from which it has just received a single mild shock. These photos show a rat burying a test object from which it has just received a single mild shock.
A sphere, 0.30 m in radius, has a surface emissivity of 0.48 and is at a temp A sphere, 0.30 m in radius, has a surface emissivity of 0.48 and is at a temp
Video: Proteins

For a complete list of videos, visit our video library