03/27/23

A figure skater is spinning with an initial angular speed of 9.4rad/s. He then pulls his arms in, reducing his moment of inertia to 0.30 times its original value.
What is his angular speed after pulling in his arms?
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11/13/22

Consider the basis B of R^2 consisting of vectors [4 4] and [-4 -6]. Find x in R^2 whose coordinate vector relative to the basis B is x B
Find x in R^2 whose coordinate vector relative to the basis B is xB= [-1 -4].
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10/11/22

Please show work!
The crate shown in the figure lies on a plane tilted at an angle of 27o to the horizontal, with μk = 0.19.Determine the acceleration of the crate as it slides down the plane.If the crate starts... more
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03/03/22

One study suggests that from 1955 to 1970, the number of bachelor's degrees in physics awarded per year by U.S. universities grew exponentially, with growth constant 𝑘=0.101 k = 0.101 .
One study suggests that from 1955 to 1970, the number of bachelor's degrees in physics awarded per year by U.S. universities grew exponentially, with growth constant 𝑘=0.101(a.) If exponential... more
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11/03/17

Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. x=7y^2, y = 1, x = 0, about the y-axis
please help! much thank!
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