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A 1.40-kg block slides with a speed of 0.950 m/s on a frictionless horizontal surface until it encounters a spring with a force constant of 734 N/m. The block comes to rest after compressing the spring 4.15 cm. Discover the spring potential energy, U, the kinetic energy of the block, K and the total mechanical energy of the system, E, for compressions of
(a) 0 cm, (b) 1.00 cm,(c) 2.00 cm, (d) 3.00 cm, and (e) 4.00 cm.
What is the maximum kinetic energy of electrons if the metal is illuminated by UV light of wavelength 375nm
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Block A has mass 1.20 kg and Block B has mass 2.9 kg. They are forced together, compressing spring S between them how much potential energy was stored in the compressed spring
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