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

Author Question: A 200-m radio telescope is used to investigate sources emitting a 21-cm wavelength. The minimum ... (Read 22 times)

mspears3

  • Hero Member
  • *****
  • Posts: 586
on: Jul 29, 2018
A 200-m radio telescope is used to investigate sources emitting a 21-cm wavelength. The minimum angular separation resolvable for this system is
 
  A)
 
  0.073.
  B)
 
  0.03.
  C)
 
  0.0013.
  D)
 
  0.154.
  E)
 
  0.0026.

Question 2

Two charges QA = +2 C and QB = - 6C are located on the x-axis at xA= - 1 cm and xB= +2 cm respectively. Where should a third charge, QC = + 3C, be placed on the positive x-axis so that the potential at the origin is equal to zero?
 
  A)
 
  x = 4 cm
  B)
 
   x = +1 cm
  C)
 
  x =+2 cm
  D)
 
   x = 3 cm
  E)
 
  x = 5 cm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

randomguy133

  • Sr. Member
  • ****
  • Posts: 310
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

D


mspears3

  • Hero Member
  • *****
  • Posts: 586
Reply #2 on: Jul 29, 2018
Thanks


randomguy133

  • Sr. Member
  • ****
  • Posts: 310
Reply #3 on: Jul 29, 2018
Welcome :)


« previous next »
 

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Taken by Hinode's Solar Optical Telescope on January 12, 2007, this image of the Sun reveals th Taken by Hinode's Solar Optical Telescope on January 12, 2007, this image of the Sun reveals th
Plant foods such as grains and vegetables are the main sources of nonheme iron in your diet Plant foods such as grains and vegetables are the main sources of nonheme iron in your diet
Telescope Telescope
How wide must a narrow slit be if the first diffraction minimum occurs at 12 with laser light ... How wide must a narrow slit be if the first diffraction minimum occurs at 12 with laser light ...
A photon whose wavelength is = 5.0 10-11 m is scattered straight backward. What is the ... A photon whose wavelength is = 5.0 10-11 m is scattered straight backward. What is the ...
Distribution of skin color as measured by a reflectometer at a wavelength of 685 nm. The results are Distribution of skin color as measured by a reflectometer at a wavelength of 685 nm. The results are
Video: Introduction to Dysrhythmia

For a complete list of videos, visit our video library