Determine the internal resistance of the battery

Reference no: EM1314883

Q1. A battery having an emf of 10.20 V delivers 115 mA when connected to a 74.0 load. Determine the internal resistance of the battery.

Q2. A Texas cockroach of mass 0.134 kg runs counter clockwise around the rim of a lazy Susan (a circular disk mounted on a vertical axle) that has a radius 19.07 cm, rotational inertia 3.22 x 10-3 kg•m2, and frictionless bearings. The cockroach's speed (relative to the ground) is 2.13 m/s, and the lazy Susan turns clockwise with angular velocity ω0 = 3.09 rad/s. The cockroach finds a bread crumb on the rim and, of course, stops. What is an angular speed of the lazy Susan after the cockroach stops?

Reference no: EM1314883

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