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Author Question: One light-hour is the distance light travels in one hour. The speed of light is about 300,000 km/s . ... (Read 46 times)

ahriuashd

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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


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courtney_bruh

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Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

B


ahriuashd

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Reply 2 on: Jul 27, 2018
:D TYSM

samiel-sayed

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Reply 3 on: Yesterday
Excellent

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