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

Author Question: Consider three galaxies, Alpha, Beta and Gamma. An astronomer in Beta sees each of the other two ... (Read 130 times)

WWatsford

  • Hero Member
  • *****
  • Posts: 539
    • Biology Forums!
on: Jul 29, 2018
Consider three galaxies, Alpha, Beta and Gamma. An astronomer in Beta sees each of the other two galaxies moving away from him in opposite directions at 0.70c. At what speed would an observer in Alpha see the galaxy Gamma moving?
 
  A) 1.4c B) 0.94c C) 0.98c D) 0.82c E) 0.70c

Question 2

Consider two current-carrying circular loops. Both are made from one strand of wire and both carry the same current, but one has twice the radius of the other.
 
  If the magnetic field strength at the center of the smaller loop is B, what is the magnetic field strength at the center of the larger loop? A) 8B
  B) 4B
  C) 2B
  D) B/2
  E) B/4
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

JaynaD87

  • Sr. Member
  • ****
  • Posts: 368
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 35% of students answer this correctly


WWatsford

  • Hero Member
  • *****
  • Posts: 539
    • Biology Forums!
Reply #2 on: Jul 29, 2018
Thank you!


JaynaD87

  • Sr. Member
  • ****
  • Posts: 368
Reply #3 on: Jul 29, 2018
Always glad to help...


« previous next »
 

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Apparent and True Orbits of Alpha Centauri. Apparent and True Orbits of Alpha Centauri.
Artist's rendition of the view from a hypothetical airless planet orbiting Alpha Centauri A Artist's rendition of the view from a hypothetical airless planet orbiting Alpha Centauri A
Five Galaxies and Their Spectra Five Galaxies and Their Spectra
Galaxies Forming by Combining Smaller Units Galaxies Forming by Combining Smaller Units
A buildup of beta amyloid plaques and tangled strands of tau protein interferes with neuronal ... A buildup of beta amyloid plaques and tangled strands of tau protein interferes with neuronal ...
Annotation of a DNA sequence containing part of the human beta-globin gene Annotation of a DNA sequence containing part of the human beta-globin gene
Video: Pasteur's Experiment

For a complete list of videos, visit our video library