« previous next »

Author Question: A spectroscopic binary shows periodic variations in its a. radial velocity. b. proper motion. ... (Read 63 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?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

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.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Range of Motion of the Shoulder Joint, External Rotation Range of Motion of the Shoulder Joint, External Rotation
Binary Fission Binary Fission
A Heliocentric Explanation of Retrograde Motion A Heliocentric Explanation of Retrograde Motion
Petrissage with a flat hand. Apply compression across the abdomen in a wavelike motion. Push in ... Petrissage with a flat hand. Apply compression across the abdomen in a wavelike motion. Push in ...
If y = 0.02 sin (30x - 400t) (SI units), the velocity of the wave is If y = 0.02 sin (30x - 400t) (SI units), the velocity of the wave is
Variations in patient response to drugs Variations in patient response to drugs
Video: Sigmoidoscopy

For a complete list of videos, visit our video library