# Physics

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Suppose you discover your grandfather's collection of Caruso records from the early part of the century. These disks played at 78.0 revolutions/minute (rpm) and were 9.00in. in diameter.
What was the radial acceleration of a point on the rim of such a record as you listened to the great tenor singing?

• Physics -

a=rω²
a=acceleration in m/s²

• Physics -

7.63

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