What type of device is a car engine? a. a heat pump that uses work to move a heat b. a heat pump that uses heat to do work c. a heat engine that uses work to move heat d. a heat engine that uses heat to do work !

D. a heat engine that uses heat to do work

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever

powerful computers now, not then