« previous next »

Author Question: The Drake equation calculates N. What is N? A) the number of intelligences in the entire universe ... (Read 32 times)

theo

  • Hero Member
  • *****
  • Posts: 698
on: Jul 27, 2018
The Drake equation calculates N. What is N?
 
  A) the number of intelligences in the entire universe
  B) the number of technical civilizations in our galaxy presently
  C) the number of stars with habitable planets
  D) the number of planets with life in the universe
  E) the number of planets in just our galaxy

Question 2

At which stage in a Sun-like star's life is its core the least dense?
 
  A) Main Sequence
  B) Subgiant Branch
  C) Helium Fusion
  D) Planetary Nebula
  E) White Dwarf


Eunice618

  • Sr. Member
  • ****
  • Posts: 350
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

The vehicle identification number (VIN) is visible through the base of the windshield and on a ... The vehicle identification number (VIN) is visible through the base of the windshield and on a ...
Starting at the waist, apply circular two-handed petrissage over the entire right side. Keep hands ... Starting at the waist, apply circular two-handed petrissage over the entire right side. Keep hands ...
How to classify whether an equation is linear, quadratic, or cubic How to classify whether an equation is linear, quadratic, or cubic
The minimum number of moles of oxygen needed to completely consume 4 moles of C3H8O is ... The minimum number of moles of oxygen needed to completely consume 4 moles of C3H8O is ...
The number of phenotypic classes in the F2 generation increases as the number of genes controlling t The number of phenotypic classes in the F2 generation increases as the number of genes controlling t
The charge for telephone calls T is partly constant and partly varies with the number N of ... The charge for telephone calls T is partly constant and partly varies with the number N of ...
Video: baroreceptors

For a complete list of videos, visit our video library