A fulcrum allows for an input force of 4 N and an output force of 12 N. What is the mechanical advantage of the fulcrum? If you put a scam website like 'click here to see the answer' i will report you because thats literal bulls__ (:

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

What is the equation for electrical work?

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.