Question: For a spinning disk, such as a CD or DVD, show that in the reference frame of the disk Equation 2-44 follows from Equation 2-43.

For a spinning disk, such as a CD or DVD, show that in the reference frame of the disk Equation 2-44 follows from Equation 2-43.

ds = cdt (dr + rd + dz) 2-43

ds = cdt (dr + rd + dz) 2-43

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