Problem 43
Review. The ratio of the number of sparrows visiting a bird feeder to the number of more interesting birds is 2.25. On a morning when altogether 91 birds visit the feeder, what is the number of sparrows?
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Chapter 13 In translational motion the more massive particle has the most rotational inertia Mass distribution with respect to the rotational axis also impacts rotational inertia; the farther away the mass is from the rotational axis the more rotational inertia will exist. Rotational inertia can be found by: n 2 I= ∑ m i i i=1 M is the mass of the particle r is the distance from the rotational axis The rotational inertia on a continuous object such as a bicycle wheel is:
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