The loaded cab of an elevator has a mass of 3.0 x 103 kg, Ask an Expert

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Q1. Determine currents I1, I2, and I3 (R5 = 20 ohms). Suppose the internal resistance of each battery is r = 1.0.
What is the terminal voltage of the B=6.5V battery?

Q2. The loaded cab of an elevator has a mass of 3.0 x 10^3 kg and moves 145 m up the shaft in 23 s at constant speed. At what average rate does the force from the cable do work on the cab?

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