Created by StemPy LabA spring of force constant is already stretched by . The work needed to stretch it slowly from to , in joules, is ____.
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← A particle of mass 0.5 kg moves at a steady 2 m/s along the straight line y = 3 m, in the +x direction, as shown in the figure. The magnitude of its angular momentum about the origin, in kg m²/s, is ____.A battery has an emf of 24 V and an internal resistance of 3 Ω. A variable resistor is connected across it and adjusted until it takes the greatest possible power. That greatest power, in watts, is ____. →
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