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1. Jerome and Claire are doing the Period of a Pendulum Lab. They observe that a pendulum makes exactly 10
complete back and forth cycles of motion in 21.8 seconds. Determine the period of the pendulum.

2. The spin rate of a CD-ROlVl varies according to the location on the disc from where data is being accessed.
When accessing data frorn the inner circles of the disc, the CD can spin at a rate as high as 400 revolutions
per minute. Determine the frequency (in Hertz) and the period (in seconds) of the spinning CD.

3. A geological disturbance in California produces seismic waves which are detected in Phoenix, approximately
990 km from the epicenter. If the waves travel 6.3km/s, determine the time delay between the disturbance and the detection.​

1 Jerome And Claire Are Doing The Period Of A Pendulum Lab They Observe That A Pendulum Makes Exactly 10complete Back And Forth Cycles Of Motion In 218 Seconds class=

Sagot :

KLAUSTYNSILVENIA21IN

ANSWER:

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1.)

[tex]p = \frac{10}{21.8} \\ \\ p = 2.18[/tex]

2.)

[tex]p = \frac{400}{59} \\ \\ p = 6.7[/tex]

3.)

[tex]p = \frac{990}{6.3} \\ \\ p = 157.14[/tex]

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