A runaway railroad car, with mass 4.50 × 105 kg, coasts across a level track at 3.80 m/s when it collides with a spring-loaded bumper at the end of the track. If the spring constant of the bumper is 3.80 × 106 N/m, what is the maximum compression of the spring during the collision? (Assume the collision is elastic.)
Answers: 3
Physics, 21.06.2019 19:00
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Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?
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What is the magnitude of the acceleration vector which causes a particle to move from velocity −5i−2j m/s to −6i+ 7j m/s in 8 seconds. answer in m/s.
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Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?
Answers: 3
A runaway railroad car, with mass 4.50 × 105 kg, coasts across a level track at 3.80 m/s when it col...
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