John weighs 100 N on Earth (g=10 m/s2) and Mary weighs 100 N on the Moon (g=1.6 m/s2) . Which of the following statements about John and Mary’s masses is true? A.
John’s mass is greater than Mary’s

B.
Mary’s mass is greater than John’s

C.
None of the above

D.
Mary and John have the same mass

the answer is d. 4

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unbalanced force

explanation:

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

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