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

Author Question: The speed of light is 3.0 105 km/s, and it takes 1.3 s for light to travel from the Moon to Earth. ... (Read 78 times)

Destiiny22

  • Hero Member
  • *****
  • Posts: 557
on: Jul 27, 2018
The speed of light is 3.0  105 km/s, and it takes 1.3 s for light to travel from the Moon to Earth. From this information, what is the distance to the Moon?
 
  a. 390,000 km
  b. 230,000 km
  c. 3.9 km
  d. 2.3 km
  e. 4.3  105 km

Question 2

Earth has a radius of about 6400 km, the Sun has a radius of about 7.0105 km, and a rubber ball has a radius of 6.4 cm. If you were to construct a scale model of the solar system using the rubber ball to represent Earth, what is the radius of a ball needed to represent the Sun in your model?
 
  a. 7.0  105 cm
  b. 7.0 cm
  c. 700 cm
  d. 70 cm
  e. 7000 cm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

vkodali

  • Sr. Member
  • ****
  • Posts: 357
Reply #1 on: Jul 27, 2018
Answer to Question 1

a

Answer to Question 2

c


Destiiny22

  • Member
  • Posts: 557
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

Liamb2179

  • Member
  • Posts: 365
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

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?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

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?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

The Moon's north pole during summer. The Moon's north pole during summer.
The Atmosphere Screens Earth from Harmful Solar Radiation The Atmosphere Screens Earth from Harmful Solar Radiation
Endangerment sites of the head and face. Use only light to moderate pressure on head and face. Endangerment sites of the head and face. Use only light to moderate pressure on head and face.
Precession: Earth’s axis rotates, or “wobbles” Precession: Earth’s axis rotates, or “wobbles”
Short-wavelength flux is reflected by Earth Short-wavelength flux is reflected by Earth
Electric Light Orchestra (ELO) - Telephone Line + Lyrics Electric Light Orchestra (ELO) - Telephone Line + Lyrics
Video: Semidiscontinuous DNA replication

For a complete list of videos, visit our video library