A 30 g ice cube at -30°C is dropped into a container of water at 0°C.
How much water freezes onto the ice? The
specific heat of ice is 0.5 cal/g °C and its heat
of fusion of is 80 cal/g.
Answer in units of g.

The basketball coach tells his team to run sprints back and forth across the court, which is 30 m long. they start at the left end of the court, run back and forth 6 times, then end back at the left end of the court where they began. what distance did they run? what is their displacement?