Awater hose is used to fill a large cylindrical storage tank of

distance diameter d and height 2d. the hose shoots the water at 45°

above the horizontal from the same level as the base of the tank and is a

distance 6d away. for what range of launch speeds will the water enter

the tank? ignore air resistance, and express your answer in terms of d

and g.

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 5655 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.