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

Author Question: The objective lens of a refracting astronomical telescope has a focal length of 60 cm, and the ... (Read 48 times)

faduma

  • Hero Member
  • *****
  • Posts: 528
on: Jul 29, 2018
The objective lens of a refracting astronomical telescope has a focal length of 60 cm, and the eyepiece has a focal length of 2.0 cm. How far apart should the lenses be placed in order to form a final image at infinity?
 
  A) 60 cm B) 58 cm C) 76 cm D) 44 cm E) 62 cm

Question 2

A pendulum of length L is suspended from the ceiling of an elevator. When the elevator is at rest the period of the pendulum is T.
 
  How would the period of the pendulum change if the supporting chain were to break, putting the elevator into freefall? A) The period does not change.
  B) The period increases slightly.
  C) The period decreases slightly.
  D) The period becomes zero.
  E) The period becomes infinite because the pendulum would not swing.
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

flannelavenger

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 29% of students answer this correctly


faduma

  • Member
  • Posts: 528
Reply 2 on: Jul 29, 2018
:D TYSM

skipfourms123

  • Member
  • Posts: 343
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Sun Telescope Sun Telescope
Extended Objects Create a Focal Plane Extended Objects Create a Focal Plane
Micro RNAs (miRNA), 20-25 bp in length, can inactivate mRNAs. Micro RNAs (miRNA), 20-25 bp in length, can inactivate mRNAs.
The metric system specifies fasteners by diameter, length, and pitch. The metric system specifies fasteners by diameter, length, and pitch.
Measuring leg length Measuring leg length
Video: Cardiac Cycle (Part 3 of 4)

For a complete list of videos, visit our video library