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A ball is dropped from the top of an 80 m high building. How long will it take to hit the ground?
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Blank liquids and gases exert a buoyant force on objects placed in them
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Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic
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Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.
Answers: 1
A ball is dropped from the top of an 80 m high building. How long will it take
to hit the ground?...
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