3. What is the kinetic energy (KE) of the spin motion of the Moon? The spin period of moon is 27.3 days.
a) about 3.15 E23 J
b) about 7.07 E-12
c) about 3.15 E23 N
d) about 8.91 E34 J
e) none
5. What mass for linear motion, a moment of inertia does for angular motion.
a) true
b) false
6. In slow driving, a truck tire's diameter 42 inches rotate through a 180-degree angle in 1.5 minutes. What is the angular velocity?
a) 0.035 rad/s
b) 120 rad/s
c) none
d) 2.09 rad/s
e) 0.035
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