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

Author Question: The H line has a wavelength of 410.2 nm when observed in the laboratory. If the H line appears in a ... (Read 96 times)

CBme

  • Hero Member
  • *****
  • Posts: 548
on: Jul 27, 2018
The H line has a wavelength of 410.2 nm when observed in the laboratory. If the H line appears in a stars spectrum at 410.0 nm, what is the radial velocity of the star?
 
  a. 146 km/s away from the observer
  b. 146 km/s toward the observer
  c. 6.0  107 m/s away from the observer
  d. 6.0  107 m/s toward the observer
  e. The radial velocity of the star cannot be determined from this information.

Question 2

Choose the correct word(s) that make the statement true. A (lunar, solar) eclipse occurs when the Moon is (new, quarter, gibbous, full) and the ordering of aligned celestial objects is always Sun, Earth, Moon.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Eazy416

  • Sr. Member
  • ****
  • Posts: 360
Reply #1 on: Jul 27, 2018
Answer to Question 1

b

Answer to Question 2

lunar, full


CBme

  • Hero Member
  • *****
  • Posts: 548
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


Eazy416

  • Sr. Member
  • ****
  • Posts: 360
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

An example of an EHR screen used to order a laboratory test. An example of an EHR screen used to order a laboratory test.
Drug development time line. Drug development time line.
How to find the slope of a line using any two points How to find the slope of a line using any two points
Find an equation of the tangent line to the graph of f(x) = sqrt(x) / (x+1) at the point x=1 Find an equation of the tangent line to the graph of f(x) = sqrt(x) / (x+1) at the point x=1
The line with the equation y=5x+12 intersects the parabola with equation y=xsqared+7x-3 at the ... The line with the equation y=5x+12 intersects the parabola with equation y=xsqared+7x-3 at the ...
Offset Method Plot of Land with Length Line Offset Method Plot of Land with Length Line
Video: Nervous pathway to the Neuromuscular (NMJ)

For a complete list of videos, visit our video library