A 4 kg bowling ball begins rolling down a lane at the bowling alley at 6 m/s. When it strikes the pins, it is estimated to be moving at 5 m/s. How much energy is lost due to friction?

The text compares alternating current with direct current. how are they different? a alternating current reverses direction in the electrical wiring. direct current flows in one direction only. b direct current reverses direction in the electrical wiring. alternating current flows in one direction only. c direct current is powered by solar energy. alternating current is powered by electrical energy. d alternating current does not move in the electrical wiring. direct current does move in the electrical wiring.