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Author Question: On a photograph of the Moon, the Moon measures 30 cm in diameter and a small crater measures 0.2 cm. ... (Read 2721 times)

neverstopbelieb

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on: Jul 27, 2018
On a photograph of the Moon, the Moon measures 30 cm in diameter and a small crater measures 0.2 cm. The Moon's physical diameter is 1738 km. What is the physical diameter of the small crater?
 
  a. about 1738 km
  b. about 12 km
  c. about 520 km
  d. about 350 km
  e. about 3.5 km

Question 2

51 Pegasi is important because
 
  a. it is a pulsar with planets orbiting around it.
  b. it is a star with a planet that is known to support intelligent life.
  c. it is the largest satellite of Jupiter.
  d. it is the largest known asteroid.
  e. it is the first star like our Sun that was found to have a planet orbiting it.


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Zack0mack0101@yahoo.com

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

b
RATIONALE: Using conversions, you can set up an equation like 0.2 cm/30 cm = x/1738 km and solve for x.

Answer to Question 2

e


neverstopbelieb

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

marict

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Reply 3 on: Yesterday
Wow, this really help

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