« previous next »

Author Question: A concave mirror forms a real image at 25.0 cm from the mirror surface along the principal axis. If ... (Read 74 times)

krzymel

  • Hero Member
  • *****
  • Posts: 548
on: Jul 28, 2018
A concave mirror forms a real image at 25.0 cm from the mirror surface along the principal axis. If the corresponding object is at a 20.0-cm distance, what is the mirror's focal length?
 a. 1.43 cm
  c. 7.14 cm
  b. 16.7 cm
  d. 11.1 cm

Question 2

Which one of the following processes of heat transfer requires the presence of a fluid?
 a. conduction
  c. convection
  b. radiation
  d. None of the choices are valid.


Ahernandez18

  • Sr. Member
  • ****
  • Posts: 361
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Examples of structures in which extensive surface area is important for function. Examples of structures in which extensive surface area is important for function.
Image of an Almost-Extrasolar Planet Image of an Almost-Extrasolar Planet
Changes in Land Configuration and Surface Characteristics Changes in Land Configuration and Surface Characteristics
Forms of Sexual Misconduct Cont Forms of Sexual Misconduct Cont
Relationship Between the Atlas and the Axis. The Dens of the Axis Provides a Pivotal Point Around Wh Relationship Between the Atlas and the Axis. The Dens of the Axis Provides a Pivotal Point Around Wh
Video: Protein catabolism (Krebs cycle) and Protein anabolism (protein synthesis)

For a complete list of videos, visit our video library