9. Adriana is walking to the east at 3.00 m/s with a friend who is also walking east at 3.00 m/s, keeping a constant distance of 2.00 m from Adriana. The friend is talking, emitting a sound wave with power 34.0 mW. They are approached from behind by a bicyclist moving at 7.00 m/s east, ringing the bicycle's bell which emits with frequency 910 Hz and power 0.089 W. Air temperature is 17.0°C. At the instant when the bicyclist is 10.0 m behind Adriana, find: a) The frequency Adriana hears for the bicycle bell b) The intensity Adriana hears for the bicycle bell c) The intensity Adriana hears from her friend

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Q: Can you help me with p 14.36

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!