Using a 1-mF capacitor, a 2-mF capacitor, and a 3-mF capacitor, which of the following capacitances cannot be made by a combination that uses all three? (Hint: At most only 2 combinations must be considered to determine the correct answer.)
a. 6/11 mF
c. 11/3 mF
b. 6 mF
d. 7 mF
Question 2
A 4.0-kg mass is placed at (3.0, 4.0) m, and a 7.0-kg mass is placed at (3.0, -4.0) m. What is the moment of inertia of this system of masses about the y axis?
a. 275 kgm2
c. 176 kgm2
b. 90 kgm2
d. 99 kgm2
