Acar with a mass of 2000 kg and a truck with a mass of 4000 kg are both moving at 20 m/s. which of these statements is correct? a. the car's momentum is smaller than the truck's momentum. b. the car's momentum is larger than the truck's momentum. c. the car and the truck have the same momentum.
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Ahydroelectric plant takes energy from water and turns it into electrical energy. what are the transformations of energy in the water molecules that are used in the process of generating electricity this way?
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1400 kg car has a speed of 27 m/s. if it takes 7 s to stop the car, what is the impulse and the average force acting on the car?
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The focal length of a lens is determined by the curve of the lens and the material that the lens is made from. (5 points) is this true or false? ?
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Acar with a mass of 2000 kg and a truck with a mass of 4000 kg are both moving at 20 m/s. which of t...
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