The figure above shows two yo-yos that have the same mass and rotational inertia. The one on the right has a thicker axle than the one on the left. The torque produced by gravity is
A. zero; there is no net torque on the yo-yos.
B. larger for the yo-yo on the right.
C. larger for the yo-yo on the left.
D. the same for both yo-yos.
Answer: B
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Evaluate the Prandtl number from the data below
GIVEN
FIND
The Prandtl number (Pr)
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What will be an ideal response?
The Sun rotates with its equator inclined _____ to Earth's orbit
A) 7.2° B) 14° C) 21.4° D) 28°