Author Question: Gravitational lensing a. occurs when light passes near a massive object and is deflected by the ... (Read 60 times)

crazycityslicker

  • Hero Member
  • *****
  • Posts: 537
Gravitational lensing
 
  a. occurs when light passes near a massive object and is deflected by the object's gravitational field.
  b. can be used to determine the luminosity of a galaxy.
  c. occurs when the mass of a galaxy is greater than expected from the luminosity of the galaxy.
  d. occurs when the mass of a galaxy is less than expected from the luminosity of the galaxy.
  e. can be used to determine the recessional velocity of a galaxy.

Question 2

Hydrostatic equilibrium refers to the balance between weight and pressure.
 
  a. True
  b. False
  Indicate whether the statement is true or false



Smiles0805

  • Sr. Member
  • ****
  • Posts: 305
Answer to Question 1

a

Answer to Question 2

True



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

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.

For a complete list of videos, visit our video library