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A stone is thrown vertically upward with a speed of 12.0 m/s from the edge of a cliff 70.0 m high (figure 2-34).
1) What total distance did it travel?
2) What is its speed just before hitting?
3) How much later does it reach the bottom of the cliff?
A resistance R and a 3.4-H inductance are in series across a 60-Hz ac voltage. The voltage across the resistor is 34 V and the voltage across the inductor is 39 V. Assume that all voltages in this problem are rms voltages. (a) What is the resistance ..
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