47. Calculate Final Temperature 200 g of water in a glass is at 10.0°C when an ice
cube is placed in the glass. What is the tem-
perature of the water after it has transferred
4,200 J of thermal energy to the ice cube?

If you were to drop a rock from a tall building, assuming that it had not yet hit the ground, and neglecting air resistance. what is its vertical displacement (in m) after 6 s?

Describe uniform velocity and variable velocity in short

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.