For her first trial, the student decided to mix 250 ml of water at 20°c with 250 ml of water at 98°c. after waiting some time, she recorded the temperature of the mix to be 56°c. what is the change in temperature of the cold and hot water

Which feature indicates that mars resides in the inner region of the solar system

What should the power status of a circuit be when measuring resistance with an ohmmeter?

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?