A heat pump is used to keep a house warm at 22∘C How much work is required of the pump to deliver 2700 J of heat into the house if the outdoor temperature is 0∘C. Assume a COP of 3.0

Which of these describe conduction transfer of heat between two objects that are touching transfer of heat by the actual movement of war matter the process in which energy is imitated by one of the object transmitted through space and absorbed by another a process in which energy is released by the molecules breaking apart

What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.

There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.