Abattery power is a remote controlled car as it dries across the floor. what types of energy conversions are occurring in the system

Your 249 ml cup of coffee is too hot to drink when served at 82 degree celsius. what is the mass of an ice cube taken from a -21 degree celsius freezer, that will cool your coffee to a pleasant 54 degree celsius. specific heat of the water is 4190 j/kg c, specific heat of ice is 2090 j/kg c, heat of fusion of ice is 3.33 x 10^5 j/kg

The slope of a velocity time graph over any interval of time gives the during that interval

Avoltaic cell converts chemical energy to