two students make a model of a tree house they want to build. the scale 1:44. in the scale model, the tree house has 2 windows.

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

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

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