Physics, 25.01.2020 07:31, andreanb9632
A1.33 kg object is attached to a horizontal spring of force constant 2.50 n/cm and is started oscillating by pulling it 6.40 cm from its equilibrium position and releasing it so that it is free to oscillate on a frictionless horizontal air track. you observe that after eight cycles its maximum displacement from equilibrium is only 3.70 cm .
(a) how much energy has this system lost to damping during these eight cycles?
(b) where did the "lost" energy go? explain physically how the system could have lost energy.
Answers: 1
Physics, 22.06.2019 00:50, gungamer720
Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?
Answers: 1
A1.33 kg object is attached to a horizontal spring of force constant 2.50 n/cm and is started oscill...
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