Period = 0.5 second is the answer.
Answer:
Hi, There!
O 10 m/s
O 10 yd/s
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I guess it is a: seismic waves
<span>it would bond to the phosphate
</span>
External = R
Internal = r
Volume of hemisperical = 2/3 π(R³-r³)
V= 2/3 π(9.1³ - 8.4³)
V= 336.9 cm³
