Weight and g: By how many newtons does the weight of a 100-kg person decrease when he goes from sea level to mountain top at an altitude of 5000 m? The mean radius of the earth is 6.38 × 106 m.
A. 0.60 N
B. 1.5 N
C. 2.6 N
D. 3.6 N
E. 9.8 N
Answer: B
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