In less than 20 words compare mass and weight.

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?

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f

Which two particles are found in the center of an atom