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Two cars of mass 3000 kg are 2 m apart. What is the force of gravity between them?
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Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?
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Which composition of water moves to begin a deepwater current?
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Select the correct answer. what does the process of natural selection involve?
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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
Two cars of mass 3000 kg are 2 m apart. What is the force of gravity between them?...
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