I NEED HELP! A force of 20 newtons changes the momentum of a moving object by 4.0 kgm/s. How long did the force act on the mass?

0.20 s

0.5 s

1.0 s

2.0 s

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?

Which one of the following research methods can show cause and effect

Rohit is trying to tune an instrument