What is the answer to this question

What is work? how much work is done to move an object 0 meters?

Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?

Avehicle has an oil leak that is causing the entire oil pan to be wet, but inspection reveals no exact source after cleaning off the oil residue. technician a says to install a fluorescent dye in the crankcase and operate the engine, then re-inspect for leaks with a special light (black light). technician b says the oil leak may be coming from a source at the top of the engine, such as a valve cover gasket. who is correct?