Jared owns a 6.00 meter long canoe that has a mass of 25.0 kg. Assume its mass is uniformly distributed such that its center of mass is at its center. When 90.0 kg Jared sits on the very end of the canoe, how much does the center of mass change from the 3.00 meter location?

The lid of a pressure cooker forms a nearly airtight seal. steam builds up pressure and increases temperature within the pressure cooker so that food cooks faster than it does in an ordinary pot. the system is defined as the pressure cooker and the water and steam within it. if 2.0 g of water is sealed in a pressure cooker and then vaporized by heating, and 5127 j must be added as heat to completely vaporize the water, what is the change in the system’s internal energy? answer in units of j.