2. A 35-g bullet moving at 450 m/s strikes a 2.5-kg wooden block that is at rest. The bullet passes through the block, leaving at 250 m/s. How fast is the block moving when the bullet leaves?

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Q: 7. In your own words, describe the concept of sound intensity. K/UC

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Q: 14. Andrea, of mass 54.5kg, thinks she's sitting at rest in the middle of her 4.81m long dorm room…

A: mass = 54.5 kg length of dorm room = 4.81 m