« previous next »

Author Question: The absorption lines in the visible portion of the spectrum of a star that are produced by hydrogen ... (Read 119 times)

washai

  • Hero Member
  • *****
  • Posts: 523
on: Jul 27, 2018
The absorption lines in the visible portion of the spectrum of a star that are produced by hydrogen are from the
 
  a. Lyman series.
  b. Balmer series.
  c. Paschen series.
  d. isotopes of hydrogen.
  e. ions of hydrogen.

Question 2

There are _______ nanometers in one meter.
 
  a. 1  103
  b. 1  103
  c. 1  109
  d. 1  109
  e. 400


leahm14

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jul 27, 2018
Answer to Question 1

b

Answer to Question 2

d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

An overview of the four phases of food use in animals: ingestion, digestion, absorption, and elimina An overview of the four phases of food use in animals: ingestion, digestion, absorption, and elimina
One-dimensional NMR spectrum of a globin from a marine blood worm One-dimensional NMR spectrum of a globin from a marine blood worm
Prisms and a Spectrum Prisms and a Spectrum
Mass Loss from a Supermassive Star Mass Loss from a Supermassive Star
A set of six reconditioned injectors. The sixth injector is barely visible at the far right. A set of six reconditioned injectors. The sixth injector is barely visible at the far right.
Liquid Water Properties compared with n-pentane, nonpolar, non-hydrogen bonding liquid Liquid Water Properties compared with n-pentane, nonpolar, non-hydrogen bonding liquid
Video: Allergic Rhinitis

For a complete list of videos, visit our video library