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

Author Question: One light-hour is the distance light travels in one hour. The speed of light is about 300,000 km/s . ... (Read 271 times)

ahriuashd

  • Hero Member
  • *****
  • Posts: 535
on: Jul 27, 2018
One light-hour is the distance light travels in one hour. The speed of light is about 300,000 km/s . How far is 1 light-hour?
 
  A) 300 thousand km (300,000, or 3  105 km)
  B) 1.08 billion km (1,080,000,000, or 1.08 109 km)
  C) 18 million km (18,000,000, or 1.8  107 km)
  D) 9.46 trillion km (9,460,000,000,000, or 9.46  1012 km)

Question 2

The force due to gravity between two objects can be described using the equation Fg = G M1 M2 / d2. In this equation, what does G represent?
 
  A) the distance between the two objects
  B) the universal gravitational constant
  C) the density of the smaller object


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

courtney_bruh

  • Sr. Member
  • ****
  • Posts: 308
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

B


ahriuashd

  • Member
  • Posts: 535
Reply 2 on: Jul 27, 2018
:D TYSM

helenmarkerine

  • Member
  • Posts: 324
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

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?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Visible Light Spectrum Visible Light Spectrum
Absorbance of Light by Rods and Cones Absorbance of Light by Rods and Cones
Color mixtures of refracted light—additive process. Color mixtures of refracted light—additive process.
Speed of Light in Different Mediums Speed of Light in Different Mediums
A microwave telescope “sees” microwave light coming from all directions in the sky… A microwave telescope “sees” microwave light coming from all directions in the sky…
You ride a motor scooter 8 km in 10 minutes. Your speed is You ride a motor scooter 8 km in 10 minutes. Your speed is
Video: Generalized life cycles for plants and animals Animation

For a complete list of videos, visit our video library