The problem is missing some parts but nevertheless here is
the answer:
Given:
1.7 m long barbell with 23 kg weight on the left and 34 in
the right end.
Solution:
Calculating from the left side:
Center of gravity = ΣM/ΣW = [23*0 + 9*(1.7/2) + 34*1.7]/[23+9+34]
Center of gravity = .992 m from the left end
According to Ohm's law for a portion of the circuit we have:
U=RI=>I=U/R=9/4=2.25 A
The correct answer is C. Universal Gravitation (it was written by Issac Newton)
