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1) Which takes more work, slowing a car from 100km/h to 70km/h, or 70km/h to 0? 2)...

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Physics

1) Which takes more work, slowing a car from 100km/h to 70km/h,or 70km/h to 0?

2) A 0.2kg falcon flies at 50m/s toward a 0.01kg shrew moving at0.2m/s away from the falcon. What is the total kinetic energy ofthe falcon-shrew system?

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