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 103 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
Great answer, keep it coming :)

mammy1697

  • Member
  • Posts: 341
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

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.

Molecular mechanisms that convey positional information. Molecular mechanisms that convey positional information.
Estimating the molecular weight of a protein Estimating the molecular weight of a protein
Estimating the molecular weight of a protein. The electrophoretic mobility of a protein on an SDS po Estimating the molecular weight of a protein. The electrophoretic mobility of a protein on an SDS po
With the rocker arms contacting the base circle of the cam, insert a feeler gauge of the specified ... With the rocker arms contacting the base circle of the cam, insert a feeler gauge of the specified ...
Growth in Warm Clouds Growth in Warm Clouds
The molecular structures of isooctane (left) and octane (right) dictate the differing chemical and ... The molecular structures of isooctane (left) and octane (right) dictate the differing chemical and ...
Video: Simple Diffusion - Ion transport

For a complete list of videos, visit our video library