« previous next »

Author Question: A spectroscopic binary shows periodic variations in its a. radial velocity. b. proper motion. ... (Read 64 times)

jrubin

  • Hero Member
  • *****
  • Posts: 552
on: Jul 27, 2018
A spectroscopic binary shows periodic variations in its
 
  a. radial velocity.
  b. proper motion.
  c. brightness.
  d. mass.
  e. spectral type.

Question 2

What is the wavelength of light that has a frequency of 3 MHz?
 
  a. 9  1014 Hz
  b. 1  1014 m
  c. 9  1014 m
  d. 100 m
  e. 0.01 m


hugthug12

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 27, 2018
Answer to Question 1

a

Answer to Question 2

d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

A plot of trophic diversity across the major groups of organisms shows highest trophic diversity amo A plot of trophic diversity across the major groups of organisms shows highest trophic diversity amo
The Periodic Table (Part 1) The Periodic Table (Part 1)
Radial and Transverse Velocities of a Star Radial and Transverse Velocities of a Star
Palpation of radial pulse Palpation of radial pulse
Variations Affecting Health Care Among Different Cultures Variations Affecting Health Care Among Different Cultures
The end of a typical line wrench, which shows that it is capable of grasping most of the head of ... The end of a typical line wrench, which shows that it is capable of grasping most of the head of ...
Video: Global warming and its effect on climate change

For a complete list of videos, visit our video library