Concept explainers
The diameter of the moon is approximately
a. The diameter of Earth is approximately 3.7 times the diameter of the moon. Determine the diameter of Earth. Write your answer in scientific notation.
b. The distance from the centre of Earth to the centre of the moon is approximately 30 times the diameter of Earth. Determine the distance from the centre of Earth to the centre of the moon. Write your answer in scientific notation.
a.
Tocalculate : The diameter of Earth in scientific notation
Answer to Problem 43P
Diameter of Earth
Explanation of Solution
Given information : The diameter of the moon is approximately
Calculation :
Diameter of moon
Diameter of Earth
So,
Diameter of Earth
In scientific notation,
(A number is said to be in scientific notation if it lies between 1 and 10 and it is multiplied by a power of 10.)
Hence,
Diameter of Earth
b.
Tocalculate : Distance from the center of the Earth to the center of the moon
Answer to Problem 43P
Distance from the center of the Earth to the center of the moon
Explanation of Solution
Calculation :
Diameter of Earth
Distance from the center of the Earth to the center of the moon
So,
Distance from the center of the Earth to the center of the moon
In scientific notation,
Distance from the center of the Earth to the center of the moon
(A number is said to be in scientific notation if it lies between 1 and 10 and it is multiplied by a power of 10.)
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