Author Question: A projector lens is needed to form an image on a screen 20 times the size of its corresponding ... (Read 28 times)

karateprodigy

  • Hero Member
  • *****
  • Posts: 550
A projector lens is needed to form an image on a screen 20 times the size of its corresponding object. The screen is located 8.0 m from the lens. What is the required focal length of the lens?
 a. 0.32 m
  c. 0.73 m
  b. 0.38 m
  d. 1.25 m

Question 2

An ideal gas is confined to a container with adjustable volume. The number of moles and temperature are constant. By what factor will the volume change if pressure quadruples?
 a. 16
  c. 1/4
  b. 4
  d. 1/16



ms_sulzle

  • Sr. Member
  • ****
  • Posts: 320
Answer to Question 1

B

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

karateprodigy

  • Hero Member
  • *****
  • Posts: 550
Both answers were spot on, thank you once again



ms_sulzle

  • Sr. Member
  • ****
  • Posts: 320

 

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

For a complete list of videos, visit our video library