The latent heat of vaporization of h2o at body temperature (37.0° c) is 2.42 106 j/kg. to cool the body of a 84 kg jogger (average specific heat capacity = 3500 j/(kg · c°)) by 1.2° c, how many kilograms of water in the form of sweat have to be evaporated?

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 subatomic particle has a negative charge

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?