Falls freely from rest and strikes the ground. during the collision with the ground, he comes to rest in a time of 0.040 s. the average force exerted on him by the ground is 18 000 n, where the upward direction is taken to be the positive direction. from what height did the student fall
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Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?
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Explain what happens at the saturation point when adding salt to water at room temperature.
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3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?
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Falls freely from rest and strikes the ground. during the collision with the ground, he comes to res...
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