- A piece of iron that weighs 29 N is lowered into water and then released. Following its release under water, what is the net force acting on the piece of iron? Be sure to indicate whether the net force points up or down.
- A flat-bottom boat weighs 7,000 N, including passengers. The area of the bottom surface of the boat is 4.6 m2 . When the boat is floating on the water, how far below the water’s surface is the bottom of the boat?
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