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

Author Question: Spiral arms are obviouseasily-seen featuresbecause they contain ____. a. dense molecular clouds ... (Read 97 times)

Zulu123

  • Hero Member
  • *****
  • Posts: 525
on: Jul 27, 2018
Spiral arms are obviouseasily-seen featuresbecause they contain ____.
 
  a. dense molecular clouds
  b. atomic hydrogen clouds
  c. sun-like stars
 d. OB associations
 e. supernovae

Question 2

The second postulate of special relativity states that ____.
 
  a. observers cannot detect their uniform motion except relative to other objects
 b. observers cannot distinguish locally between inertial forces and uniform gravitational forces due to acceleration and the presence of a massive body
 c. the laws of physics are the same for all observers regardless of their motion as long as their speed is constant
  d. the speed of light is constant and will be the same for all observers independent of their motion relative to the light source
  e. the acceleration of an object is proportional to the applied force and inversely proportional to its mass


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

234sdffa

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 27, 2018
Answer to Question 1

d

Answer to Question 2

d


Zulu123

  • Member
  • Posts: 525
Reply 2 on: Jul 27, 2018
Excellent

helenmarkerine

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Molecular pharming Molecular pharming
Artist's conception of the birth of a star within a dense molecular cloud. Artist's conception of the birth of a star within a dense molecular cloud.
Spiral Produced by twisting stresses that are spread along the length of a bone (note the break in t Spiral Produced by twisting stresses that are spread along the length of a bone (note the break in t
Variety in Spiral Arms Variety in Spiral Arms
Growth in Warm Clouds Growth in Warm Clouds
Molecular Movement Molecular Movement
Video: Chromosome structural organization/ Mechanisms for chromosome movement Animation

For a complete list of videos, visit our video library