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 103 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?

There are more bacteria in your mouth than there are people in the world.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

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.

A herd of barren-ground caribou at the Thelon River. This subspecies is a long-distance migrant A herd of barren-ground caribou at the Thelon River. This subspecies is a long-distance migrant
Comet 67P/Churyumov-Gerasimenko from a distance of just 29 kilometres (ESA) Comet 67P/Churyumov-Gerasimenko from a distance of just 29 kilometres (ESA)
Major parts of the cell and the structures located inside the cell. Major parts of the cell and the structures located inside the cell.
The heat range of a spark plug is determined by the distance the heat has to flow from the tip to ... The heat range of a spark plug is determined by the distance the heat has to flow from the tip to ...
energy of interaction and distance of particle energy of interaction and distance of particle
A 600-kg car is going around a curve with a radius of 120 m that is banked at an angle of 20° ... A 600-kg car is going around a curve with a radius of 120 m that is banked at an angle of 20° ...
Video: Stroke volume - afterload definition & hypertension

For a complete list of videos, visit our video library