Q1. A stone is dropped into a deep canyon and is heard to strike the base 6.8 s after release. How deep is the canyon? The speed of sound waves in air is 343 m/s and an acceleration of gravity is 9.8 m/s2.
Explain answer in units of m
Q2. What is the instantaneous power, at a time of 0.00700 seconds, dissipated by a 200 ohm resistor in a resonant AC circuit powered by a generator with a 21.0 V greatest potential difference operating at 5000 rad/s?
Give response for the answer in W.