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

Author Question: Light can travel to Earth from a distant star, but sound cannot. Why is this? a. Light is an ... (Read 106 times)

wrbasek0

  • Hero Member
  • *****
  • Posts: 560
on: Jul 28, 2018
Light can travel to Earth from a distant star, but sound cannot. Why is this?
 a. Light is an electromagnetic wave, and sound requires a medium.
  b. The Sun does not make sound.
  c. Light is a longitudinal wave, and sound is a transverse wave.
  d. The statement is false; both light and sound can travel in empty space.

Question 2

The number of states in the He+ ion corresponding to the principle quantum number n = 5 are
 a. 18
  b. 25
  c. 50
  d. 9
  e. 11


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

upturnedfurball

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 28, 2018
Answer to Question 1

a

Answer to Question 2

c


wrbasek0

  • Member
  • Posts: 560
Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

ryansturges

  • Member
  • Posts: 338
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Astronomers identified 12-billion-year-old white dwarf stars only 100 light years away from Earth Astronomers identified 12-billion-year-old white dwarf stars only 100 light years away from Earth
False-color imagery of the Sun, a G-type main-sequence star, the closest to Earth. False-color imagery of the Sun, a G-type main-sequence star, the closest to Earth.
Earth’s Major Tectonic Plates Earth’s Major Tectonic Plates
Cutaway Model of Earth Cutaway Model of Earth
Distant Galaxies Distant Galaxies
All fuel injectors should make the same sound with the engine running at idle speed. A lack of sound ... All fuel injectors should make the same sound with the engine running at idle speed. A lack of sound ...
Video: Simple Diffusion - gases and nonpolar compounds transport

For a complete list of videos, visit our video library