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 39 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?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Mars's average distance from the Sun is roughly 230 million km (1.5 AU) and its orbital period Mars's average distance from the Sun is roughly 230 million km (1.5 AU) and its orbital period
Ionic Radius Ionic Radius
Object and Word Recognition After Midsegments of Lines Have Been Eliminated Object and Word Recognition After Midsegments of Lines Have Been Eliminated
The sense of taste. Note: taste buds are located on the anterior and posterior portions of the ... The sense of taste. Note: taste buds are located on the anterior and posterior portions of the ...
The limbic system is located within the higher brain, or cerebrum. The limbic system is located within the higher brain, or cerebrum.
Video: Role of the respiratory system - effect of altered ventilation rates

For a complete list of videos, visit our video library