Physics 20.
Here are two sample calculation questions.
1. The hard disk drive in a computer spins at a rate of 7.20 E3 RPMs. If the disk has a radius of 8.26cm, what is the speed of the outer edge of the disk?
2. A 15.0 g solution in a test tube is placed in a centrifuge that spins at a rate of 2.50 E2 Hz . What is the centripetal force exerted on the solution if the radius of the circular motion is 12.0 cm?
Science 8
Please use these review practices.
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