A mail carrier walked six blocks to the north, one block to the east, and then six blocks to the south. What was the mail carrie
1 answer:
This question deals with the concept of displacement.
The displacement of the mail carrier is "one block to the east".
<em>Displacement</em> is a vector quantity because it contains both the magnitude and the direction of the physical quantity. In this case, as well both the direction and values shall be considered to find out the displacement of the mail carrier.
Displacement = 6 blocks north + 6 blocks south + 1 block east
Since north and south are the opposite directions. Therefore, they will cancel each other.
<u>Displacement = 1 block east</u>
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Learn more about displacement here:
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The attached picture shows the concept of <em>displacement</em>.
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Answer:
Fg = 4.2*10²² N
Explanation:
The gravitational force between any two masses, provided that can be approximated by point masses (comparing their diameters with the distance between them), obeys the Newton's Universal Law of Gravitation, which states that the force (always attractive) is proportional to the product of the masses and inversely proportional to the square of the distance between them (this as a consequence of our Universe being three-dimensional), as follows:
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Fg₂ = Fg₁*6 = 7*10²¹ N* 6 = 4.2*10²² N