The correct answer is this one: "length of address." The element that is not part of Aristotle's rhetorical triangle is the length of the address. The rhetorical triangle of Aristotle are the logos, pathos, and ethos. Logos is the logic, Pathos is the audience emotion, Ethos is the speaker's credibility.
Explanation:
mass of student(M1)=55
mass of book(M2)=?
distance(d)=0.435m
gravitational constant (G)=6.67×10^-11
force(F)=2.68×10^-8
Now,
F=GM1M2/d^2.
then do the numericals .It's taking long time so I escaped Sorry
Use direct proportionality: If 1.25 m = 72 N, then 0.55 m = y
0.55 m × 72 = 39.6.
39.6÷1,25 gives you your answer which is 31.68 N.
